TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 20, 3:00 AM EST
Kalshi
This set of markets tracks whether measurable rainfall will occur on a specific date in various U.S. cities. Each market is tied to a particular location, with outcomes determined by official weather data sources. The focus is on precipitation levels exceeding trace amounts to qualify as a 'Yes' outcome.
Each market evaluates whether measurable precipitation occurs in a specified U.S. city on September 19, 2026. A 'Yes' outcome is triggered if the total precipitation reported by The Weather Company for the city's designated weather station strictly exceeds zero inches. Trace amounts and missing data are counted as zero inches and therefore do not satisfy the 'Yes' condition. All markets uniformly rely on The Weather Company's official data, accessible via weather.com/kalshi, as the definitive source for resolution. The consistent application of these criteria across all locations ensures standardized evaluation, with each city's specific weather station identifier (e.g., CLINYC for New York City) determining the relevant data point.