Aiken County Climate
Aiken County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.1°F
Annual Precip
50.8"
Annual Snowfall
0.7"
Extreme Heat Days
86
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,739
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Aiken County
Climate Verdict
Aiken County has a warm, averaging 64.1°F year-round, moderately wet with 50.8 inches of annual precipitation, significant summer heat with 86.2 days annually above 90°F, light snow averaging 0.7 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 45.4°F. summers are hot, with July averaging 82.3°F. The 37°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Aiken County closely matches the South Carolina statewide average temperature of 62.8°F, the county experiences 23.13934108527131 more extreme heat days than the state average.
Climate Profile
About Aiken County Weather
High heat in a subtropical climate
Aiken's 64.1°F average temperature sits well above the national median, marking it as a warm humid subtropical zone. The area receives 50.8 inches of rain, exceeding the state average of 48.9 inches.
Warmer than the South Carolina average
Aiken is notably warmer than the state norm, recording a 64.1°F annual average compared to 62.8°F statewide. It represents one of the hotter inland counties in South Carolina.
Warmer than its northern Piedmont neighbors
Aiken is significantly warmer than Abbeville at 62.1°F. It shares a nearly identical thermal profile with neighboring Barnwell, which averages 64.3°F annually.
Eighty-six days of extreme summer heat
Residents face 86 extreme heat days annually as July temperatures average 82.3°F. Winters are brief and mild, averaging 47.2°F with less than an inch of annual snowfall.
Plan for extended heat and humidity
Heavy-duty cooling systems are essential to handle nearly three months of temperatures over 90°F. Outdoor activities are best planned for early morning to avoid the intense afternoon peaks.
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.