TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 10, 2:59 AM EST
Kalshi
This event tracks the highest temperature recorded in Denver, Colorado on July 9, 2026. The outcome will be determined by the National Weather Service's official Climatological Report (Daily), which provides the authoritative temperature measurement for that date.
Resolution is based on the highest temperature recorded in Denver, Colorado on July 9, 2026, as reported in the National Weather Service's Climatological Report (Daily). The temperature reading determines which outcome resolves to Yes: 83° or below, 84-85°, 86-87°, 88-89°, 90-91°, or 92° or above. The NWS Climatological Report (Daily) is the sole official source for resolution; preliminary NWS data and third-party weather services are for reference only. Traders should be aware that preliminary NWS reporting and measurement methods may involve rounding and conversion nuances that could affect the final determination.
Prediction market odds often diverge from traditional meteorological forecasts because traders incorporate real-time data, historical patterns, and risk premiums that formal models may lag in reflecting. While weather services issue deterministic forecasts, this market prices uncertainty through continuous trading, allowing odds to shift rapidly as new information arrives. Comparing the two reveals whether the crowd is pricing in more or less extreme outcomes than official guidance suggests, highlighting areas of disagreement or emerging consensus.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to different temperature ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each contract reflects the probability traders assign to a specific outcome, with prices ranging from near-zero to near-unity. As new weather models, seasonal data, or atmospheric conditions become available, traders adjust their positions, and the market price updates to reflect the latest collective assessment of Denver's peak temperature on that date.
This market resolves around Jul 10, 2026, once July 9, 2026 has passed and the highest temperature recorded in Denver that day is verified against credible public sources. The outcome is determined by official temperature data from established meteorological reporting, ensuring an objective and auditable settlement. Traders holding positions aligned with the verified outcome receive their winnings, while positions on incorrect ranges expire worthless.
Major weather pattern shifts, updated seasonal climate outlooks, and real-time atmospheric data will drive significant price swings in this market. El Niño or La Niña developments, jet-stream positioning, and high-altitude ridge formation over the Rocky Mountain region are key catalysts. Additionally, historical heat-wave comparisons and long-range ensemble forecasts released closer to July 2026 will influence trader positioning. Extreme heat events elsewhere in the region or shifts in climate anomalies can also trigger rapid repricing as traders reassess Denver's likelihood of record or near-record temperatures.