Where will it rain on October 21?
As of 04:39 UTC on 21 Oct 2026, the highest-priced of the 14 markets in “Where will it rain on October 21?” on Polymarket are “Los Angeles, CA” at 94% (-3pp in 24h), “Phoenix, AZ” at 78% (-9pp in 24h) and “San Francisco, CA” at 72% (-8pp in 24h). The event has $375 in Polymarket-reported 24-hour volume. pdata.world matches it to “Where will it rain on Oct 21, 2026?” on Kalshi, an event with 35 outcomes. pdata.world compares it with 20 related events on Kalshi and Polymarket.
This market will resolve to "Yes" for each listed city that records measurable precipitation on October 21, 2026. Otherwise, this market will resolve to "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 each station: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning. Each city is an independent market. Any number of cities may resolve "Yes", including all of them or none of them. 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 each city's station.
