Climate change in Teton County, Wyoming
Since 1979, Teton County, Wyoming has warmed 2.1°F, with about the same number of days above 90°F, about the same number of nights above 70°F and 1% more precipitation a year.
- Average temperature: +2.1°F
- Summer highs (Jun–Aug): +2.8°F
- Winter lows (Dec–Feb): +3.1°F
- Precipitation: +1%
- Wettest day of the year: +12%
- Longest dry spell: +0 days
- Days above 90°F: +0 days
- Nights above 70°F: +0 days
- Freezing nights: −5 days
- Frost-free season: +13 days
- Muggy days: +0 days
- Summer heat index (Jun–Aug): +2.9°F
- Extreme fire-weather days: +14 days
- Snowfall: +20%
- Snowy days (1 inch or more): +8 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.