Climate change in Warren County, Ohio
Since 1979, Warren County, Ohio has warmed 2.7°F, with 4 more days above 90°F, 3 more nights above 70°F and 9% more precipitation a year. Its climate in 1996–2025 is most like Henry County, KY's was in 1951–1980.
- Average temperature: +2.7°F
- Summer highs (Jun–Aug): +1.1°F
- Winter lows (Dec–Feb): +4.2°F
- Precipitation: +9%
- Wettest day of the year: +9%
- Longest dry spell: −2 days
- Days above 90°F: +4 days
- Nights above 70°F: +3 days
- Freezing nights: −15 days
- Frost-free season: +13 days
- Muggy days: +8 days
- Summer heat index (Jun–Aug): +1.2°F
- Extreme fire-weather days: +15 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.