Climate change in Fresno County, California
Since 1979, Fresno County, California has warmed 2.7°F, with 25 more days above 90°F, 1 more nights above 70°F and 22% less precipitation a year.
- Average temperature: +2.7°F
- Summer highs (Jun–Aug): +4.3°F
- Winter lows (Dec–Feb): +1.6°F
- Precipitation: −22%
- Wettest day of the year: +22%
- Longest dry spell: +23 days
- Days above 90°F: +25 days
- Nights above 70°F: +1 days
- Freezing nights: −19 days
- Frost-free season: +21 days
- Muggy days: +0 days
- Summer heat index (Jun–Aug): +3.4°F
- Extreme fire-weather days: +38 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.