Climate change in Alamosa County, Colorado
Since 1979, Alamosa County, Colorado has warmed 3.6°F, with 2 more days above 90°F, about the same number of nights above 70°F and 3% less precipitation a year.
- Average temperature: +3.6°F
- Summer highs (Jun–Aug): +4.3°F
- Winter lows (Dec–Feb): +4.6°F
- Precipitation: −3%
- Wettest day of the year: +22%
- Longest dry spell: −1 days
- Days above 90°F: +2 days
- Nights above 70°F: +0 days
- Freezing nights: −11 days
- Frost-free season: +8 days
- Muggy days: +0 days
- Summer heat index (Jun–Aug): +3.8°F
- Extreme fire-weather days: +25 days
- Snowfall: −2%
- Snowy days (1 inch or more): −1 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.