Climate change in Clarion County, Pennsylvania
Since 1979, Clarion County, Pennsylvania has warmed 2.6°F, with 2 more days above 90°F, about the same number of nights above 70°F and 6% more precipitation a year. Its climate in 1996–2025 is most like Fayette County, PA's was in 1951–1980.
- Average temperature: +2.6°F
- Summer highs (Jun–Aug): +1.9°F
- Winter lows (Dec–Feb): +3.1°F
- Precipitation: +6%
- Wettest day of the year: +5%
- Longest dry spell: +0 days
- Days above 90°F: +2 days
- Nights above 70°F: +0 days
- Freezing nights: −6 days
- Frost-free season: +8 days
- Muggy days: +6 days
- Summer heat index (Jun–Aug): +2.5°F
- Extreme fire-weather days: +17 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.