Denver early October temperatures rarely drop below 66°F during daytime highs.
Weather forecasts suggest a low chance of the temperature being below 66°F.
Denver early October averages typically low-to-mid 70s; sub-66°F unlikely for peak daytime temperature.
If the maximum temperature recorded at Denver (CLIDEN) for Oct 1, 2026, is less than 66° fahrenheit according to The Weather Company, then the market resolves to Yes.
See it on Kalshi ↗Denver average Oct 1 high is 72°F with recent forecasts suggesting warmer conditions; below 66°F is unlikely but possible with a cold snap.
Denver Oct avg high ~70°F, Oct 1 likely 72-75°F, 66°F threshold is unusually cool, 11% market seems fair.
Market’s 11% implies a Denver forecast high in the low 70s versus a 66° strike; climatology and Front Range error bars only nudge that up a point.
Forecasts point to Denver highs in the 70s on Oct 1, leaving a sub‑66°F max unlikely.
Denver's early-October climate-normal highs run near 70°F, well above the 66°F threshold, consistent with market pricing.
In the absence of contradictory weather data, I am siding with the market's strong conviction that Denver will exceed 65°F.
Available Denver forecasts concentrate around the upper 60s to low 70s, making a high of 65 or less uncommon.