Climate change in Madison County, Ohio
Since 1979, Madison County, Ohio has warmed 2.6°F, with 2 more days above 90°F, 2 more nights above 70°F and 9% more precipitation a year. Its climate in 1996–2025 is most like Warren County, OH's was in 1951–1980.
- Average temperature: +2.6°F
- Summer highs (Jun–Aug): +0.9°F
- Winter lows (Dec–Feb): +3.8°F
- Precipitation: +9%
- Wettest day of the year: −1%
- Longest dry spell: −1 days
- Days above 90°F: +2 days
- Nights above 70°F: +2 days
- Freezing nights: −15 days
- Frost-free season: +19 days
- Muggy days: +4 days
- Summer heat index (Jun–Aug): +1.3°F
- Extreme fire-weather days: +12 days
- Snowfall: −23%
- 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.