Horry County Climate
Horry County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
63.6°F
Annual Precip
52.4"
Annual Snowfall
—
Extreme Heat Days
34
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,540
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Horry County
Climate Verdict
Horry County has a warm, averaging 63.6°F year-round, moderately wet with 52.4 inches of annual precipitation, occasional hot days — 33.56666666666667 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 45.8°F. summers are hot, with July averaging 80.6°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
Horry County closely matches the South Carolina statewide average temperature of 62.8°F, it is somewhat wetter than average for South Carolina, the county experiences 29.49399224806202 fewer extreme heat days than the state average.
Climate Profile
About Horry County Weather
Warmer and Wetter than the National Average
Horry County maintains an average annual temperature of 63.6°F, significantly exceeding the national median of approximately 55°F. This humid subtropical climate receives 52.4 inches of rain annually, which is nearly 14 inches more than the typical U.S. county.
Beating the South Carolina Temperature Average
The county's 63.6°F annual average sits nearly a full degree higher than the South Carolina state average of 62.8°F. This coastal warmth is driven by mild winters where the average temperature remains a comfortable 47.7°F.
A Damp Exception Among Coastal Neighbors
While neighboring Marion County averages 51.3 inches of rain, Horry County sees even higher totals at 52.4 inches. Its 34 extreme heat days per year make it much cooler during the summer than inland neighbors like Marion, which sees 55 such days.
Mild Winters and Manageable Summer Heat
Summer averages hover around 79.1°F, with 34 days reaching 90°F or higher. While snowfall data is limited for the coast, the January average of 45.8°F ensures that freezing weather is a rare occurrence.
Planning for High Humidity and Rain
With 52.4 inches of annual precipitation, residents should prioritize advanced drainage systems and mold-resistant building materials. High-efficiency HVAC systems are essential here to manage the consistent coastal humidity rather than extreme temperature spikes.
Frequently Asked Questions
What is the average temperature in Horry County?
How much rain does Horry County get?
How hot does Horry County get in summer?
How cold are winters in Horry County?
Track your own weather in Horry 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.