Allendale County Climate
Allendale County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
63.4°F
Annual Precip
48.8"
Annual Snowfall
—
Extreme Heat Days
75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,479
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Allendale County
Climate Verdict
Allendale County has a warm, averaging 63.4°F year-round, moderately wet with 48.8 inches of annual precipitation, significant summer heat with 74.5 days annually above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 45.9°F. summers are hot, with July averaging 80.5°F. The 35°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
Allendale County closely matches the South Carolina statewide average temperature of 62.8°F.
Climate Profile
About Allendale County Weather
Well above the national temperature median
With an annual average of 63.4°F, Allendale is significantly warmer than the U.S. median. This humid subtropical region sees 48.8 inches of precipitation, matching the state average.
Slightly warmer than the state norm
Allendale’s 63.4°F average places it above the South Carolina state average of 62.8°F. It sits firmly in the warmer half of the state's 46 counties.
Consistent warmth in the southern interior
It is slightly cooler than neighboring Bamberg at 64.4°F but warmer than the state average. This consistency reflects the stable, warm climate of the southern coastal plain.
Heat dominates the local calendar
Summer averages reach 78.9°F, and the county endures 75 days of extreme heat over 90°F. While snowfall data is unavailable for this region, winter remains mild with a 47.5°F average.
Prepare for 75 days of extreme heat
The high frequency of 90-degree days requires reliable air conditioning and heat-safety awareness for outdoor workers. Gardeners can take advantage of the mild 47.5°F winters for extended growing seasons.
Frequently Asked Questions
What is the average temperature in Allendale County?
How much rain does Allendale County get?
How hot does Allendale County get in summer?
How cold are winters in Allendale County?
Track your own weather in Allendale County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.