Recent atmospheric patterns ahead of September 4 featured a persistent high-pressure ridge over the eastern U.S. suppressing moisture, contrasted with a Pacific trough and associated cold front advancing through the West. National Weather Service and NOAA analyses highlighted elevated precipitable water values and instability favoring scattered showers and thunderstorms primarily across the Pacific Northwest and northern Rockies. Global Forecast System and European model runs showed moderate consensus on timing but divergence in exact rainfall footprints due to the system's speed. Updated radar composites and surface observations from local NWS offices following the date will determine market resolution thresholds for specific locations.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWhere will it rain on September 4?
$3,506 Vol.
New York, NY
96%
Los Angeles, CA
4%
Chicago, IL
4%
Houston, TX
96%
Dallas, TX
4%
Phoenix, AZ
2%
Philadelphia, PA
-
Denver, CO
4%
Washington, DC
4%
Atlanta, GA
11%
Miami, FL
99%
Seattle, WA
95%
Boston, MA
4%
New Orleans, LA
100%
San Francisco, CA
4%
$3,506 Vol.
New York, NY
96%
Los Angeles, CA
4%
Chicago, IL
4%
Houston, TX
96%
Dallas, TX
4%
Phoenix, AZ
2%
Philadelphia, PA
-
Denver, CO
4%
Washington, DC
4%
Atlanta, GA
11%
Miami, FL
99%
Seattle, WA
95%
Boston, MA
4%
New Orleans, LA
100%
San Francisco, CA
4%
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Market Opened: Sep 3, 2026, 7:09 AM ET
Resolver
0x65070BE91...Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Resolver
0x65070BE91...Recent atmospheric patterns ahead of September 4 featured a persistent high-pressure ridge over the eastern U.S. suppressing moisture, contrasted with a Pacific trough and associated cold front advancing through the West. National Weather Service and NOAA analyses highlighted elevated precipitable water values and instability favoring scattered showers and thunderstorms primarily across the Pacific Northwest and northern Rockies. Global Forecast System and European model runs showed moderate consensus on timing but divergence in exact rainfall footprints due to the system's speed. Updated radar composites and surface observations from local NWS offices following the date will determine market resolution thresholds for specific locations.
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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