Climate change in Brown County, Ohio
Since 1979, Brown County, Ohio has warmed 2.4°F, with 5 more days above 90°F, about the same number of nights above 70°F and 15% more precipitation a year. Its climate in 1996–2025 is most like Clark County, KY's was in 1951–1980.
- Average temperature: +2.4°F
- Summer highs (Jun–Aug): +1.3°F
- Winter lows (Dec–Feb): +4.0°F
- Precipitation: +15%
- Wettest day of the year: +3%
- Longest dry spell: +2 days
- Days above 90°F: +5 days
- Nights above 70°F: +0 days
- Freezing nights: −15 days
- Frost-free season: +7 days
- Muggy days: +9 days
- Summer heat index (Jun–Aug): +1.8°F
- Extreme fire-weather days: +11 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.