A frontal system and associated thunderstorms delivered the heaviest rainfall on September 4, 2026, across northeast Wisconsin and northern Minnesota, with official National Weather Service reports confirming multi-inch totals including over 6 inches near Manitowoc and 5+ inches near Appleton from overnight September 3–4. Scattered lighter amounts fell in parts of northern California and isolated Great Lakes locations, while most other U.S. regions recorded little or no measurable precipitation. Market-implied odds reflect trader focus on these verified NWS gauge data and any defined geographic or threshold criteria for resolution, with limited model divergence once observations were finalized. No major forecast updates remain pending for this past event.
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?
$9,780 Vol.
New York, NY
Yes
Los Angeles, CA
No
Chicago, IL
No
Houston, TX
Yes
Dallas, TX
No
Phoenix, AZ
No
Philadelphia, PA
Yes
Denver, CO
No
Washington, DC
No
Atlanta, GA
No
Miami, FL
Yes
Seattle, WA
Yes
Boston, MA
No
New Orleans, LA
Yes
San Francisco, CA
No
$9,780 Vol.
New York, NY
Yes
Los Angeles, CA
No
Chicago, IL
No
Houston, TX
Yes
Dallas, TX
No
Phoenix, AZ
No
Philadelphia, PA
Yes
Denver, CO
No
Washington, DC
No
Atlanta, GA
No
Miami, FL
Yes
Seattle, WA
Yes
Boston, MA
No
New Orleans, LA
Yes
San Francisco, CA
No
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...Outcome proposed: Yes
No dispute
Final outcome: Yes
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...Outcome proposed: Yes
No dispute
Final outcome: Yes
A frontal system and associated thunderstorms delivered the heaviest rainfall on September 4, 2026, across northeast Wisconsin and northern Minnesota, with official National Weather Service reports confirming multi-inch totals including over 6 inches near Manitowoc and 5+ inches near Appleton from overnight September 3–4. Scattered lighter amounts fell in parts of northern California and isolated Great Lakes locations, while most other U.S. regions recorded little or no measurable precipitation. Market-implied odds reflect trader focus on these verified NWS gauge data and any defined geographic or threshold criteria for resolution, with limited model divergence once observations were finalized. No major forecast updates remain pending for this past event.
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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