Climate change in Aiken County, South Carolina
Since 1979, Aiken County, South Carolina has warmed 2.6°F, with 9 more days above 90°F, 35 more nights above 70°F and 2% more precipitation a year. Its climate in 1996–2025 is most like Pulaski County, GA's was in 1951–1980.
- Average temperature: +2.6°F
- Summer highs (Jun–Aug): +0.1°F
- Winter lows (Dec–Feb): +4.9°F
- Precipitation: +2%
- Wettest day of the year: +20%
- Longest dry spell: +3 days
- Days above 90°F: +9 days
- Nights above 70°F: +35 days
- Freezing nights: −19 days
- Frost-free season: +21 days
- Muggy days: +16 days
- Summer heat index (Jun–Aug): +0.9°F
- Extreme fire-weather days: −2 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.