TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
$
This event tracks whether measurable precipitation occurs at Central Park in New York on May 31, 2026.
Prediction market odds on Kalshi reflect real-money bets from traders and reflect collective expectations about May 31, 2026 rainfall in NYC. Traditional weather forecasts and meteorological models typically become reliable only 10–14 days before the event, so long-range analyst predictions for late May 2026 are limited. Prediction markets can incorporate broader information signals—historical weather patterns, seasonal trends, and trader expertise—earlier than conventional forecasts. Comparing Kalshi odds to any available seasonal climate outlooks or historical rainfall data for that date provides useful context for assessing the market's confidence.
On Kalshi, this event is priced as a binary contract where traders buy or sell shares corresponding to "Yes, it will rain" or "No, it will not rain" on May 31, 2026 in NYC. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The share price directly reflects the market's implied probability: a share trading at 65 cents suggests a 65 percent chance of rain. As new information emerges or trader sentiment shifts, prices adjust in real time. You can enter or exit positions at any time before market close on Jun 1, 2026, allowing you to profit from accurate predictions or hedge weather-related exposure.
The market resolves on Jun 1, 2026, after May 31, 2026 has concluded. Resolution is determined by whether measurable precipitation fell in New York City on that date. Official weather data sources are used to confirm whether the rainfall threshold was met. Once the outcome is verified, all winning shares are paid out at full value and losing shares expire worthless. Traders should monitor the official resolution criteria on Kalshi to understand exactly which data source and precipitation measurement standard will be applied.
Several factors can shift odds for May 31, 2026 NYC rainfall. Long-range climate patterns, including El Niño or La Niña conditions and seasonal atmospheric circulation, influence late-May weather. Historical rainfall frequency for that specific date provides a baseline. As May 2026 approaches, extended-range forecasts from meteorological models will become available and increasingly reliable, likely driving significant price moves. Unusual weather events or climate anomalies in the months leading up to May could also reshape trader expectations. Real-time updates on seasonal forecasts and any emerging weather systems will be key catalysts for market repricing.