South Carolina · county areal climate 1951–2025
Sumter County, SC
A 64.0°F / 45.4" normal · 2025 ran +0.6°F vs normal.
2026 so far · through Jul 9: This area is running
+1.1°F (62.6°F) vs the 1996–2025 to-date normal — the
13th warmest start of 76 years. Precipitation
64% of normal.
U.S. year-to-date → Normal (1996–2025)
64.0°F
annual mean · 45.4" precipitation
2025 vs Normal
+0.6°F
64.6°F · 43.7" (96% of normal)
Warmest Year
65.8°F
2024 · coldest 61.2°F (1958)
Wettest Year
65.9in
1964 · driest 26.7" (1954)
Hottest Day
105.3°F
Aug 22 · 1983
Coldest Day
3.6°F
Jan 21 · 1985
Biggest Rain Day
7.17in
Oct 11 · 1990
Record
1951–2025
75 complete years · NOAA nClimGrid
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal
nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the
station records.