Strengthening El Niño conditions, now forecast with over 90% confidence to intensify through late 2026, represent the main driver of trader sentiment for the first measurable snowfall (at least 0.1 inch) of the 2026-27 season. NOAA and Climate Prediction Center outlooks indicate above-average September and fall temperatures across much of the contiguous U.S., which historically correlates with delayed onset in lower elevations and plains cities while favoring earlier high-elevation snow in the northern Rockies and Cascades. Current observational data show early-season accumulations limited to mountain sites above roughly 7,000 feet and parts of Alaska, consistent with climatological medians from sources such as Brian Brettschneider’s analyses. Traders should watch upcoming CPC seasonal updates, NWS daily observations for key cities, and any rapid cooling signals that could shift probabilities before typical October–November windows.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedFirst snow of the 2026 season
First snow of the 2026 season
NEW
Nov 3, 2026
Buffalo, NY by October 31
56%
Denver, CO by October 31
64%
Minneapolis, MN by October 31
58%
Salt Lake City, UT by October 31
56%
Boston, MA by November 15
65%
Buffalo, NY by November 15
95%
Chicago, IL by November 15
70%
Denver, CO by November 15
98%
Detroit, MI by November 15
65%
Indianapolis, IN by November 15
73%
Kansas City, MO by November 15
31%
Minneapolis, MN by November 15
91%
Pittsburgh, PA by November 15
52%
Salt Lake City, UT by November 15
87%
Boston, MA by November 30
84%
Buffalo, NY by November 30
94%
Chicago, IL by November 30
73%
Cincinnati, OH by November 30
83%
Dallas, TX by November 30
11%
Denver, CO by November 30
99%
Detroit, MI by November 30
86%
Indianapolis, IN by November 30
94%
Kansas City, MO by November 30
56%
Minneapolis, MN by November 30
94%
Nashville, TN by November 30
29%
New York City, NY by November 30
68%
Philadelphia, PA by November 30
49%
Pittsburgh, PA by November 30
77%
Salt Lake City, UT by November 30
71%
St. Louis, MO by November 30
75%
Washington, DC by November 30
43%
$9,203 Vol.
Buffalo, NY by October 31
$208 Vol.
56%
Denver, CO by October 31
$100 Vol.
64%
Minneapolis, MN by October 31
$297 Vol.
58%
Salt Lake City, UT by October 31
$513 Vol.
56%
Boston, MA by November 15
$151 Vol.
65%
Buffalo, NY by November 15
$223 Vol.
95%
Chicago, IL by November 15
$426 Vol.
70%
Denver, CO by November 15
$163 Vol.
98%
Detroit, MI by November 15
$1,631 Vol.
65%
Indianapolis, IN by November 15
$1,870 Vol.
73%
Kansas City, MO by November 15
$70 Vol.
31%
Minneapolis, MN by November 15
$135 Vol.
91%
Pittsburgh, PA by November 15
$35 Vol.
52%
Salt Lake City, UT by November 15
$342 Vol.
87%
Boston, MA by November 30
$407 Vol.
84%
Buffalo, NY by November 30
$94 Vol.
94%
Chicago, IL by November 30
$128 Vol.
73%
Cincinnati, OH by November 30
$20 Vol.
83%
Dallas, TX by November 30
$239 Vol.
11%
Denver, CO by November 30
$175 Vol.
99%
Detroit, MI by November 30
$158 Vol.
86%
Indianapolis, IN by November 30
$677 Vol.
94%
Kansas City, MO by November 30
$120 Vol.
56%
Minneapolis, MN by November 30
$362 Vol.
94%
Nashville, TN by November 30
$57 Vol.
29%
New York City, NY by November 30
$35 Vol.
68%
Philadelphia, PA by November 30
$136 Vol.
49%
Pittsburgh, PA by November 30
$41 Vol.
77%
Salt Lake City, UT by November 30
$254 Vol.
71%
St. Louis, MO by November 30
$80 Vol.
75%
Washington, DC by November 30
$55 Vol.
43%
This market will resolve to "Yes" if Buffalo, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Buffalo, NY is measured only at station KBUF, which the National Weather Service reports as "BUFFALO NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.This market will resolve to "Yes" if Denver, CO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Denver, CO is measured only at station KDEN, which the National Weather Service reports as "DENVER CO" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDEN (midnight to midnight local time, America/Denver).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDEN, issued as product CLIDEN. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDEN.This market will resolve to "Yes" if Minneapolis, MN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Minneapolis, MN is measured only at station KMSP, which the National Weather Service reports as "TWIN CITIES MN" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KMSP (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KMSP, issued as product CLIMSP. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIMSP.This market will resolve to "Yes" if Salt Lake City, UT records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Salt Lake City, UT is measured only at station KSLC, which the National Weather Service reports as "SALT LAKE CITY UT" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KSLC (midnight to midnight local time, America/Denver).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KSLC, issued as product CLISLC. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLISLC.This market will resolve to "Yes" if Boston, MA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Boston, MA is measured only at station KBOS, which the National Weather Service reports as "BOSTON MA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBOS (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBOS, issued as product CLIBOS. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBOS.This market will resolve to "Yes" if Chicago, IL records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Chicago, IL is measured only at station KORD, which the National Weather Service reports as "CHICAGO-OHARE" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KORD (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KORD, issued as product CLIORD. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIORD.This market will resolve to "Yes" if Detroit, MI records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Detroit, MI is measured only at station KDTW, which the National Weather Service reports as "DETROIT MI" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDTW (midnight to midnight local time, America/Detroit).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDTW, issued as product CLIDTW. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDTW.This market will resolve to "Yes" if Indianapolis, IN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Indianapolis, IN is measured only at station KIND, which the National Weather Service reports as "INDIANAPOLIS IN" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KIND (midnight to midnight local time, America/Indiana/Indianapolis).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KIND, issued as product CLIIND. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIIND.This market will resolve to "Yes" if Kansas City, MO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Kansas City, MO is measured only at station KMCI, which the National Weather Service reports as "KANSAS CITY INTERNATIONAL MO" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KMCI (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KMCI, issued as product CLIMCI. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIMCI.This market will resolve to "Yes" if Pittsburgh, PA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Pittsburgh, PA is measured only at station KPIT, which the National Weather Service reports as "PITTSBURGH PA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KPIT (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KPIT, issued as product CLIPIT. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIPIT.This market will resolve to "Yes" if Cincinnati, OH records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Cincinnati, OH is measured only at station KCVG, which the National Weather Service reports as "CINCINNATI OH" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KCVG (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KCVG, issued as product CLICVG. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLICVG.This market will resolve to "Yes" if Dallas, TX records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Dallas, TX is measured only at station KDFW, which the National Weather Service reports as "DALLAS/FORT WORTH" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDFW (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDFW, issued as product CLIDFW. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDFW.This market will resolve to "Yes" if Nashville, TN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Nashville, TN is measured only at station KBNA, which the National Weather Service reports as "NASHVILLE" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBNA (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBNA, issued as product CLIBNA. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBNA.This market will resolve to "Yes" if New York City, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for New York City, NY is measured only at station KNYC, which the National Weather Service reports as "CENTRAL PARK NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KNYC (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KNYC, issued as product CLINYC. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLINYC.This market will resolve to "Yes" if Philadelphia, PA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Philadelphia, PA is measured only at station KPHL, which the National Weather Service reports as "PHILADELPHIA PA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KPHL (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KPHL, issued as product CLIPHL. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIPHL.This market will resolve to "Yes" if St. Louis, MO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for St. Louis, MO is measured only at station KSTL, which the National Weather Service reports as "ST. LOUIS" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KSTL (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KSTL, issued as product CLISTL. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLISTL.This market will resolve to "Yes" if Washington, DC records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Washington, DC is measured only at station KDCA, which the National Weather Service reports as "WASHINGTON NATIONAL DC" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDCA (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDCA, issued as product CLIDCA. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDCA.Strengthening El Niño conditions, now forecast with over 90% confidence to intensify through late 2026, represent the main driver of trader sentiment for the first measurable snowfall (at least 0.1 inch) of the 2026-27 season. NOAA and Climate Prediction Center outlooks indicate above-average September and fall temperatures across much of the contiguous U.S., which historically correlates with delayed onset in lower elevations and plains cities while favoring earlier high-elevation snow in the northern Rockies and Cascades. Current observational data show early-season accumulations limited to mountain sites above roughly 7,000 feet and parts of Alaska, consistent with climatological medians from sources such as Brian Brettschneider’s analyses. Traders should watch upcoming CPC seasonal updates, NWS daily observations for key cities, and any rapid cooling signals that could shift probabilities before typical October–November windows.
This market will resolve to "Yes" if Buffalo, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Buffalo, NY is measured only at station KBUF, which the National Weather Service reports as "BUFFALO NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.
Market Opened: Sep 2, 2026, 4:27 PM ET
Volume
$9,203End Date
Dec 4, 2026Market Opened
Sep 2, 2026, 4:27 PM ETThis market will resolve to "Yes" if Buffalo, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Buffalo, NY is measured only at station KBUF, which the National Weather Service reports as "BUFFALO NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.This market will resolve to "Yes" if Denver, CO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Denver, CO is measured only at station KDEN, which the National Weather Service reports as "DENVER CO" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDEN (midnight to midnight local time, America/Denver).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDEN, issued as product CLIDEN. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDEN.This market will resolve to "Yes" if Minneapolis, MN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Minneapolis, MN is measured only at station KMSP, which the National Weather Service reports as "TWIN CITIES MN" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KMSP (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KMSP, issued as product CLIMSP. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIMSP.This market will resolve to "Yes" if Salt Lake City, UT records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Salt Lake City, UT is measured only at station KSLC, which the National Weather Service reports as "SALT LAKE CITY UT" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KSLC (midnight to midnight local time, America/Denver).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KSLC, issued as product CLISLC. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLISLC.This market will resolve to "Yes" if Boston, MA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Boston, MA is measured only at station KBOS, which the National Weather Service reports as "BOSTON MA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBOS (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBOS, issued as product CLIBOS. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBOS.This market will resolve to "Yes" if Chicago, IL records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Chicago, IL is measured only at station KORD, which the National Weather Service reports as "CHICAGO-OHARE" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KORD (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KORD, issued as product CLIORD. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIORD.This market will resolve to "Yes" if Detroit, MI records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Detroit, MI is measured only at station KDTW, which the National Weather Service reports as "DETROIT MI" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDTW (midnight to midnight local time, America/Detroit).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDTW, issued as product CLIDTW. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDTW.This market will resolve to "Yes" if Indianapolis, IN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Indianapolis, IN is measured only at station KIND, which the National Weather Service reports as "INDIANAPOLIS IN" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KIND (midnight to midnight local time, America/Indiana/Indianapolis).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KIND, issued as product CLIIND. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIIND.This market will resolve to "Yes" if Kansas City, MO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Kansas City, MO is measured only at station KMCI, which the National Weather Service reports as "KANSAS CITY INTERNATIONAL MO" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KMCI (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KMCI, issued as product CLIMCI. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIMCI.This market will resolve to "Yes" if Pittsburgh, PA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Pittsburgh, PA is measured only at station KPIT, which the National Weather Service reports as "PITTSBURGH PA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KPIT (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KPIT, issued as product CLIPIT. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIPIT.This market will resolve to "Yes" if Cincinnati, OH records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Cincinnati, OH is measured only at station KCVG, which the National Weather Service reports as "CINCINNATI OH" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KCVG (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KCVG, issued as product CLICVG. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLICVG.This market will resolve to "Yes" if Dallas, TX records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Dallas, TX is measured only at station KDFW, which the National Weather Service reports as "DALLAS/FORT WORTH" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDFW (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDFW, issued as product CLIDFW. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDFW.This market will resolve to "Yes" if Nashville, TN records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Nashville, TN is measured only at station KBNA, which the National Weather Service reports as "NASHVILLE" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBNA (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBNA, issued as product CLIBNA. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBNA.This market will resolve to "Yes" if New York City, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for New York City, NY is measured only at station KNYC, which the National Weather Service reports as "CENTRAL PARK NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KNYC (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KNYC, issued as product CLINYC. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLINYC.This market will resolve to "Yes" if Philadelphia, PA records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Philadelphia, PA is measured only at station KPHL, which the National Weather Service reports as "PHILADELPHIA PA" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KPHL (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KPHL, issued as product CLIPHL. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIPHL.This market will resolve to "Yes" if St. Louis, MO records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for St. Louis, MO is measured only at station KSTL, which the National Weather Service reports as "ST. LOUIS" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KSTL (midnight to midnight local time, America/Chicago).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KSTL, issued as product CLISTL. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLISTL.This market will resolve to "Yes" if Washington, DC records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Washington, DC is measured only at station KDCA, which the National Weather Service reports as "WASHINGTON NATIONAL DC" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KDCA (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KDCA, issued as product CLIDCA. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIDCA.Strengthening El Niño conditions, now forecast with over 90% confidence to intensify through late 2026, represent the main driver of trader sentiment for the first measurable snowfall (at least 0.1 inch) of the 2026-27 season. NOAA and Climate Prediction Center outlooks indicate above-average September and fall temperatures across much of the contiguous U.S., which historically correlates with delayed onset in lower elevations and plains cities while favoring earlier high-elevation snow in the northern Rockies and Cascades. Current observational data show early-season accumulations limited to mountain sites above roughly 7,000 feet and parts of Alaska, consistent with climatological medians from sources such as Brian Brettschneider’s analyses. Traders should watch upcoming CPC seasonal updates, NWS daily observations for key cities, and any rapid cooling signals that could shift probabilities before typical October–November windows.
This market will resolve to "Yes" if Buffalo, NY records any snowfall on any day between market creation and the specified date, 11:59 PM local time. Otherwise, this market will resolve to "No". Snowfall for Buffalo, NY is measured only at station KBUF, which the National Weather Service reports as "BUFFALO NY" in its Daily Climate Report. Observations from any other station or location do not count.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.
Any amount of snowfall qualifies, including a report of "T" (trace) - snow observed but too little to measure. Once snowfall is reported, this market resolves "Yes" immediately, without waiting for the rest of the window. This market resolves "No" only if no snowfall is reported for any day of the window.
The observation day is the National Weather Service climate day at KBUF (midnight to midnight local time, America/New_York).
Resolution is based on the station's first published snowfall figure for each day, as given in the first final Daily Climate Report for that day. Intermediate reports issued during the day are not used. Subsequent revisions or corrections will not be considered; the first published value is final. A report whose snowfall value is missing (for example, shown as "M") does not count as a published value; the snowfall figure for that day will be taken from the first subsequent report that includes one. If a day's snowfall value is missing but the month-to-date or season-to-date snowfall total in that day's final report is higher than in the previous day's final report, snow fell on that day and this market resolves "Yes". This market resolves as soon as its outcome is determined - "Yes" as soon as any day's report shows snowfall, or "No" as soon as every day of the window has a published snowfall figure and every figure is zero. There is no waiting period. If any day's snowfall figure remains unpublished, the market will remain open until the earlier of the figure being published or the 3rd day after the specified date, 11:59 PM ET, at which point any such day is treated as zero snowfall.
The resolution source for this market is the NWS Daily Climate Report for KBUF, issued as product CLIBUF. That page shows the latest report only; past daily reports are archived on the Iowa Environmental Mesonet at https://mesonet.agron.iastate.edu/wx/afos/list.phtml?by=pil&pil=CLIBUF.
Volume
$9,203End Date
Dec 4, 2026Market Opened
Sep 2, 2026, 4:27 PM ETStrengthening El Niño conditions, now forecast with over 90% confidence to intensify through late 2026, represent the main driver of trader sentiment for the first measurable snowfall (at least 0.1 inch) of the 2026-27 season. NOAA and Climate Prediction Center outlooks indicate above-average September and fall temperatures across much of the contiguous U.S., which historically correlates with delayed onset in lower elevations and plains cities while favoring earlier high-elevation snow in the northern Rockies and Cascades. Current observational data show early-season accumulations limited to mountain sites above roughly 7,000 feet and parts of Alaska, consistent with climatological medians from sources such as Brian Brettschneider’s analyses. Traders should watch upcoming CPC seasonal updates, NWS daily observations for key cities, and any rapid cooling signals that could shift probabilities before typical October–November windows.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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Frequently Asked Questions