Greenville County Climate
Greenville County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
59.4°F
Annual Precip
57.1"
Annual Snowfall
3.0"
Extreme Heat Days
35
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
4,477
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Greenville County
Climate Verdict
Greenville County has a mild, with an average annual temperature of 59.4°F, very wet conditions receiving 57.1 inches of precipitation annually, occasional hot days — 34.53333333333333 per year above 90°F, light snow averaging 3.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 40.7°F. summers are warm — July averages 77.1°F. The 36°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
Greenville County is 3.5°F cooler than the South Carolina statewide average of 62.8°F, it is also noticeably wetter, receiving 8.2 inches more precipitation than the state average, the county experiences 28.52732558139536 fewer extreme heat days than the state average.
Climate Profile
About Greenville County Weather
Moderate temperatures and high rain
Greenville County averages 59.4°F, which is closer to the national median than its coastal counterparts. However, its 57.1 inches of annual rain is significantly higher than the national average.
The cooler side of South Carolina
Greenville is much cooler than the state average of 62.8°F, sitting 3.4 degrees below the mean. It is also one of the state's wettest counties, exceeding the average rainfall by over 8 inches.
Wettest in the Upstate region
With 57.1 inches of annual rain, Greenville outpaces most of its neighbors in precipitation. Its 59.4°F temperature makes it a refreshing mountain-adjacent alternative to the hot Midlands.
True winters and mild summers
Summer is more manageable here with only 35 days above 90°F. Winter brings the state's most significant snow at 3.0 inches annually, with a chilly January average of 40.7°F.
Prepare for snow and downpours
Unlike much of the state, Greenville residents need snow shovels for the 3.0-inch annual average. Waterproofing is essential given the heavy 57.1 inches of rain that falls throughout the year.
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.