
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
These are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
This market is closed. Its historical data remains available.
How research worksThis market will resolve according to the first listed city that records a daily snowfall of at least 0.1 inches, as recorded by the National Weather Service (NWS). This market will use a daily timeframe. If two or more cities record a snowfall of at least 0.1 inches on the same day, they will be treated as tied, regardless of when the snowfall occurred or was reported. If two or more cities tie for the first snowfall day, this market will resolve according to the city with the highest snowfall on that day. If two or more tied cities also record the same amount of snowfall, this market will resolve according to the city whose listed name comes first in alphabetical order. If no qualifying snowfall occurs in any of these cities during this market’s timeframe, this market will remain open until the first qualifying snowfall in any listed city is recorded. If no qualifying snowfall occurs in any of these cities by May 1, 2026, 11:59 PM ET, this market will resolve to “Other”. The resolution source for this market will be the National Weather Service, specifically the figure for "SNOWFALL (IN)" when "Daily Climate Report (CLI)" is selected under "Observed Weather" after navigating to the relevant city & location from https://www.weather.gov/wrh/climate. The relevant National Weather Service locations for this market will be Central Park (New York City), Detroit, MI (Detroit), Chicago O’Hare (Chicago), and St. Louis, MO (St. Louis).
This market is closed. Its historical data remains available.
How research worksThis market will resolve according to the first listed city that records a daily snowfall of at least 0.1 inches, as recorded by the National Weather Service (NWS). This market will use a daily timeframe. If two or more cities record a snowfall of at least 0.1 inches on the same day, they will be treated as tied, regardless of when the snowfall occurred or was reported. If two or more cities tie for the first snowfall day, this market will resolve according to the city with the highest snowfall on that day. If two or more tied cities also record the same amount of snowfall, this market will resolve according to the city whose listed name comes first in alphabetical order. If no qualifying snowfall occurs in any of these cities during this market’s timeframe, this market will remain open until the first qualifying snowfall in any listed city is recorded. If no qualifying snowfall occurs in any of these cities by May 1, 2026, 11:59 PM ET, this market will resolve to “Other”. The resolution source for this market will be the National Weather Service, specifically the figure for "SNOWFALL (IN)" when "Daily Climate Report (CLI)" is selected under "Observed Weather" after navigating to the relevant city & location from https://www.weather.gov/wrh/climate. The relevant National Weather Service locations for this market will be Central Park (New York City), Detroit, MI (Detroit), Chicago O’Hare (Chicago), and St. Louis, MO (St. Louis).
This market is closed. Its historical data remains available.
How research worksThis market will resolve according to the first listed city that records a daily snowfall of at least 0.1 inches, as recorded by the National Weather Service (NWS). This market will use a daily timeframe. If two or more cities record a snowfall of at least 0.1 inches on the same day, they will be treated as tied, regardless of when the snowfall occurred or was reported. If two or more cities tie for the first snowfall day, this market will resolve according to the city with the highest snowfall on that day. If two or more tied cities also record the same amount of snowfall, this market will resolve according to the city whose listed name comes first in alphabetical order. If no qualifying snowfall occurs in any of these cities during this market’s timeframe, this market will remain open until the first qualifying snowfall in any listed city is recorded. If no qualifying snowfall occurs in any of these cities by May 1, 2026, 11:59 PM ET, this market will resolve to “Other”. The resolution source for this market will be the National Weather Service, specifically the figure for "SNOWFALL (IN)" when "Daily Climate Report (CLI)" is selected under "Observed Weather" after navigating to the relevant city & location from https://www.weather.gov/wrh/climate. The relevant National Weather Service locations for this market will be Central Park (New York City), Detroit, MI (Detroit), Chicago O’Hare (Chicago), and St. Louis, MO (St. Louis).
This market is closed. Its historical data remains available.
How research worksThis market will resolve according to the first listed city that records a daily snowfall of at least 0.1 inches, as recorded by the National Weather Service (NWS). This market will use a daily timeframe. If two or more cities record a snowfall of at least 0.1 inches on the same day, they will be treated as tied, regardless of when the snowfall occurred or was reported. If two or more cities tie for the first snowfall day, this market will resolve according to the city with the highest snowfall on that day. If two or more tied cities also record the same amount of snowfall, this market will resolve according to the city whose listed name comes first in alphabetical order. If no qualifying snowfall occurs in any of these cities during this market’s timeframe, this market will remain open until the first qualifying snowfall in any listed city is recorded. If no qualifying snowfall occurs in any of these cities by May 1, 2026, 11:59 PM ET, this market will resolve to “Other”. The resolution source for this market will be the National Weather Service, specifically the figure for "SNOWFALL (IN)" when "Daily Climate Report (CLI)" is selected under "Observed Weather" after navigating to the relevant city & location from https://www.weather.gov/wrh/climate. The relevant National Weather Service locations for this market will be Central Park (New York City), Detroit, MI (Detroit), Chicago O’Hare (Chicago), and St. Louis, MO (St. Louis).
This market is closed. Its historical data remains available.
How research worksThis market will resolve according to the first listed city that records a daily snowfall of at least 0.1 inches, as recorded by the National Weather Service (NWS). This market will use a daily timeframe. If two or more cities record a snowfall of at least 0.1 inches on the same day, they will be treated as tied, regardless of when the snowfall occurred or was reported. If two or more cities tie for the first snowfall day, this market will resolve according to the city with the highest snowfall on that day. If two or more tied cities also record the same amount of snowfall, this market will resolve according to the city whose listed name comes first in alphabetical order. If no qualifying snowfall occurs in any of these cities during this market’s timeframe, this market will remain open until the first qualifying snowfall in any listed city is recorded. If no qualifying snowfall occurs in any of these cities by May 1, 2026, 11:59 PM ET, this market will resolve to “Other”. The resolution source for this market will be the National Weather Service, specifically the figure for "SNOWFALL (IN)" when "Daily Climate Report (CLI)" is selected under "Observed Weather" after navigating to the relevant city & location from https://www.weather.gov/wrh/climate. The relevant National Weather Service locations for this market will be Central Park (New York City), Detroit, MI (Detroit), Chicago O’Hare (Chicago), and St. Louis, MO (St. Louis).
Retrieved 10/4/2026, 7:43:21 AM UTC. Provider data is cached for up to 60 seconds. The upstream quote timestamp can be older.