Climate change in Harrison County, West Virginia
Since 1979, Harrison County, West Virginia has warmed 3.3°F, with 9 more days above 90°F, 2 more nights above 70°F and 6% more precipitation a year. Its climate in 1996–2025 is most like Clay County, WV's was in 1951–1980.
- Average temperature: +3.3°F
- Summer highs (Jun–Aug): +2.6°F
- Winter lows (Dec–Feb): +4.3°F
- Precipitation: +6%
- Wettest day of the year: −5%
- Longest dry spell: −3 days
- Days above 90°F: +9 days
- Nights above 70°F: +2 days
- Freezing nights: −16 days
- Frost-free season: +18 days
- Muggy days: +6 days
- Summer heat index (Jun–Aug): +3.4°F
- Extreme fire-weather days: +20 days
- Snowfall: −27%
- Snowy days (1 inch or more): −4 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.