Georgetown County Climate
Georgetown County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.0°F
Annual Precip
53.8"
Annual Snowfall
—
Extreme Heat Days
51
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,650
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Georgetown County
Climate Verdict
Georgetown County has a warm, averaging 64.0°F year-round, moderately wet with 53.8 inches of annual precipitation, occasional hot days — 51.45 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 46.7°F. summers are hot, with July averaging 80.8°F. The 34°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
Georgetown County closely matches the South Carolina statewide average temperature of 62.8°F, it is somewhat wetter than average for South Carolina.
Climate Profile
About Georgetown County Weather
A mild maritime climate
Georgetown County's 64.0°F average annual temperature is significantly higher than the national median. Ocean breezes help moderate the extremes found in more continental locations.
Wetter than the state average
The county receives 53.8 inches of annual rain, far exceeding the South Carolina average of 48.9 inches. Its 64.0°F temperature is also 1.2 degrees warmer than the state mean.
High humidity and coastal rain
Georgetown is notably wetter than many neighbors, with 53.8 inches of rain annually. The ocean influence keeps it warmer than inland counties, averaging 64.0°F year-round.
Moderate heat and mild winters
There are 51 days of extreme heat annually, which is fewer than inland areas due to coastal cooling. Winter is pleasant with a 48.4°F average, and snowfall data remains unavailable for this seaside region.
Gear up for heavy rain
With 53.8 inches of annual precipitation, high-quality rain gear and home moisture control are vital. Residents enjoy fewer 90-degree days than inland neighbors, but humidity remains a constant factor.
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.