Chesterfield County Climate
Chesterfield County, South Carolina
Avg Annual Temp
62.4°F
Annual Precip
48.9"
Annual Snowfall
0.1"
Extreme Heat Days
63.20000000000001
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Chesterfield County Weather
Classic Southern Heat and Humidity
Chesterfield County's 62.4°F annual average reflects a warm climate typical of the American South. It sits well above the national median, providing long growing seasons. The area experiences consistent rainfall throughout the year.
Aligning With the South Carolina Average
With an annual average of 62.4°F, Chesterfield sits right near the state average of 62.8°F. Its 48.9 inches of annual precipitation perfectly matches the South Carolina state norm. This makes the county a representative sample of the state's overall climate.
Cooler and Drier Than Darlington
Chesterfield is slightly cooler than Darlington County, which averages 63.1°F. It also sees 10 fewer extreme heat days than its southeastern neighbor. However, it remains much warmer than the foothills of Cherokee County.
Frequent Heat and Rare Snow
The county endures 63 days of extreme heat annually, with July temperatures averaging 80.9°F. Winter is mild at 45.4°F and provides almost no snow, averaging just 0.1 inches. The heat dominates the calendar from late spring through early autumn.
Prepare for Intense Summer Heat
With 63 days above 90°F, reliable air conditioning is a necessity for residents. Snow gear is rarely needed, as the 0.1-inch average means winter precipitation is almost always rain. Outdoor planning should account for the peak humidity of 80.9°F July averages.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.