Traders assessing this market rely on verified precipitation observations from National Weather Service stations and NOAA radar data for September 9, which establish measurable rainfall thresholds typically above 0.01 inch at specific locations. Primary drivers include the track and intensity of any surface lows, frontal passages, or convective activity that day, along with atmospheric moisture and steering patterns that steered showers. With the date now elapsed, focus shifts to official post-event summaries and quality-controlled totals from regional offices, which resolve outcomes based on geographic boundaries and accumulation criteria. Model runs from the prior week offered guidance on likely wet zones, though real-time adjustments from satellite and gauge networks determine final verification amid typical early-September variability in storm tracks.
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 9?
New York, NY
49%
Los Angeles, CA
24%
Chicago, IL
100%
Houston, TX
99%
Dallas, TX
3%
Phoenix, AZ
4%
Philadelphia, PA
16%
Denver, CO
4%
Washington, DC
24%
Atlanta, GA
20%
Miami, FL
99%
Seattle, WA
6%
Boston, MA
99%
New Orleans, LA
3%
San Francisco, CA
26%
$3,882 Vol.
New York, NY
49%
Los Angeles, CA
24%
Chicago, IL
100%
Houston, TX
99%
Dallas, TX
3%
Phoenix, AZ
4%
Philadelphia, PA
16%
Denver, CO
4%
Washington, DC
24%
Atlanta, GA
20%
Miami, FL
99%
Seattle, WA
6%
Boston, MA
99%
New Orleans, LA
3%
San Francisco, CA
26%
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 8, 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...Traders assessing this market rely on verified precipitation observations from National Weather Service stations and NOAA radar data for September 9, which establish measurable rainfall thresholds typically above 0.01 inch at specific locations. Primary drivers include the track and intensity of any surface lows, frontal passages, or convective activity that day, along with atmospheric moisture and steering patterns that steered showers. With the date now elapsed, focus shifts to official post-event summaries and quality-controlled totals from regional offices, which resolve outcomes based on geographic boundaries and accumulation criteria. Model runs from the prior week offered guidance on likely wet zones, though real-time adjustments from satellite and gauge networks determine final verification amid typical early-September variability in storm tracks.
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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