Dillon County Climate
Dillon County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
62.7°F
Annual Precip
48.6"
Annual Snowfall
0.8"
Extreme Heat Days
63
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,372
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Dillon County
Climate Verdict
Dillon County has a warm, averaging 62.7°F year-round, moderately wet with 48.6 inches of annual precipitation, significant summer heat with 63.2 days annually above 90°F, light snow averaging 0.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 44.1°F. summers are hot, with July averaging 81.1°F. The 37°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Dillon County closely matches the South Carolina statewide average temperature of 62.8°F.
Climate Profile
About Dillon County Weather
Warm Temperatures in the Pee Dee
Dillon County's annual average of 62.7°F is significantly higher than the national median temperature. It experiences a typical Deep South climate with plenty of sunshine and humidity. The region rarely sees prolonged freezing temperatures.
A Perfect Match for State Averages
Dillon's 62.7°F average and 48.6 inches of rain are nearly identical to the South Carolina state averages. It serves as a middle-ground climate for the state, neither the hottest nor the wettest. This consistency makes it a stable representative of the region's weather.
More Moderate Than Coastal Peers
Dillon is cooler than Charleston (66.1°F) and experiences 10 fewer extreme heat days than Darlington. It receives 48.6 inches of rain, which is much less than Clarendon's 55.7 inches. It occupies a more temperate niche in the eastern part of the state.
Hot Summers and Brisk, Clear Winters
Dillon sees 63 days of extreme heat each year, with July averages hitting 81.1°F. Winter is mild at 46.0°F but sees slightly more snow than its neighbors at 0.8 inches. Summer humidity remains the most significant seasonal challenge.
Balance Heat Prep and Moderate Rain
The 63 days of extreme heat require residents to have reliable cooling and plenty of shade. Because rainfall is average at 48.6 inches, standard drainage systems are usually sufficient. Keep a light shovel handy for the occasional 0.8 inches of winter snow.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.