South Carolina · county areal climate 1951–2025

Sumter County, SC

A 45.4" / 64.0°F normal · 2025 ran 96% of normal precipitation.
2026 so far · through Jul 25: This area is at 64% (16.62") of the 1996–2025 to-date normal — the 3rd driest start of 76 years. Temperature +1.2°F vs normal. U.S. year-to-date →

Normal (1996–2025)

45.4in
annual precipitation · 64.0°F

2025 vs Normal

96%
43.7" · 64.6°F (+0.6 vs normal)

Wettest Year

65.9in
1964

Driest Year

26.7in
1954

Biggest Rain Day

7.17in
Oct 11 · 1990

Warmest Year

65.8°F
2024

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

46°
J
50°
F
56°
M
64°
A
71°
M
78°
J
81°
J
80°
A
75°
S
64°
O
55°
N
48°
D
—— 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.

Nearby

← All South Carolina countiesU.S. overview
WettestSince · browse by state · precipitation & snowfall records · NOAA/RCC-ACIS ThreadEx gauge record · part of Weather Trader · supported by Substack Subscribers
© 2026 Weather Trader · All rights reserved