Climate change in Lancaster County, South Carolina
Since 1979, Lancaster County, South Carolina has warmed 2.4°F, with 7 more days above 90°F, 21 more nights above 70°F and 5% less precipitation a year. Its climate in 1996–2025 is most like Robeson County, NC's was in 1951–1980.
- Average temperature: +2.4°F
- Summer highs (Jun–Aug): +0.5°F
- Winter lows (Dec–Feb): +4.5°F
- Precipitation: −5%
- Wettest day of the year: −23%
- Longest dry spell: +0 days
- Days above 90°F: +7 days
- Nights above 70°F: +21 days
- Freezing nights: −16 days
- Frost-free season: +10 days
- Muggy days: +11 days
- Summer heat index (Jun–Aug): +0.2°F
- Extreme fire-weather days: −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.