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: Jun 23, 1:00 AM EST
Kalshi
This market tracks the lowest temperature recorded in Philadelphia on June 22, 2026. The outcome will be determined by the official National Weather Service daily climatological report for Philadelphia, which measures the minimum temperature reached during that calendar day.
Resolution is based on the minimum temperature recorded at Philadelphia on June 22, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS Eastern Region Climate portal at the Philadelphia location. Temperature ranges are divided into six bands: 62°F or below, 63-64°F, 65-66°F, 67-68°F, 69-70°F, and 71°F or above. Each band corresponds to a distinct market outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official NWS Climatological Report (Daily) serves as the authoritative source, superseding other weather services or preliminary reports.
Prediction market odds reflect real-money consensus from traders betting on the lowest temperature in Philadelphia on June 22, 2026, whereas traditional analyst forecasts rely on meteorological models and historical data. Markets often incorporate broader information—including late-breaking weather patterns, climate anomalies, and trader conviction—faster than static forecasts update. This market aggregates dispersed knowledge from many participants with financial skin in the game, which research suggests can outperform single-expert predictions. However, both approaches have merit; comparing this market's implied probabilities to published forecasts can reveal where crowd sentiment diverges from institutional models.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to different temperature outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share pays out based on the verified low temperature on the event date, and the bid-ask spread reflects the market's uncertainty. Traders can enter limit or market orders, and prices adjust dynamically as supply and demand shift. The platform's matching engine ensures transparent price discovery, with all trades recorded on the public order history.
This market resolves around Jun 23, 2026, once the lowest temperature recorded in Philadelphia on June 22, 2026 is verifiable from credible public sources. The outcome is determined by the actual low temperature reported for that date, measured in degrees Fahrenheit. Traders' positions settle based on which temperature bracket or threshold the verified low falls into. Resolution occurs shortly after the event date, allowing sufficient time for data confirmation and market closure.
Major weather pattern shifts, seasonal climate anomalies, and long-range forecast updates from meteorological agencies can significantly move this market. El Niño or La Niña conditions, polar vortex disruptions, and historical temperature records for early summer in Philadelphia all influence trader positioning. Breaking news about atmospheric blocking patterns or heat waves in the Northeast may trigger sharp repricing. As June 2026 approaches, updated 10-day and seasonal forecasts will likely drive increased trading volume and volatility, with traders adjusting positions based on the latest model consensus.