Marlboro County Climate
Marlboro County, South Carolina
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
63.4°F
Annual Precip
41.7"
Annual Snowfall
—
Extreme Heat Days
62
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
5,548
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Marlboro County
Climate Verdict
Marlboro County has a warm, averaging 63.4°F year-round, moderately wet with 41.7 inches of annual precipitation, significant summer heat with 61.6 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 44.8°F. summers are hot, with July averaging 81.2°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
Marlboro County closely matches the South Carolina statewide average temperature of 62.8°F, it is also noticeably drier, receiving 7.2 inches less precipitation than the state average.
Climate Profile
About Marlboro County Weather
Warm Temperatures and Low Rainfall
Marlboro County averages 63.4°F annually, making it much warmer than the typical U.S. county. Its precipitation of 41.7 inches is slightly higher than the national average but relatively low for a Southern county.
Exceeding the State Temperature Average
Marlboro's 63.4°F average is higher than the state mean of 62.8°F. It is one of the drier counties in the state, receiving about 7 inches less rain than the South Carolina average of 48.9 inches.
Warmer and Drier than Marion County
Marlboro County is nearly a degree warmer on average than neighboring Marion County. It also receives nearly 10 inches less rain than Marion, making it a drier alternative in the Pee Dee region.
Lengthy Summer Heat and Mild Winters
The county experiences 62 days of extreme heat each year, with July temperatures averaging a hot 81.2°F. Winters are comfortably mild, averaging 46.7°F with no significant recorded snowfall.
Managing Heat without the Humidity
Residents should prepare for 62 days of 90°F weather with sun-blocking curtains and high-efficiency fans. Because the county is drier than average, landscaping may require more supplemental watering during the hot summer months.
Frequently Asked Questions
What is the average temperature in Marlboro County?
How much rain does Marlboro County get?
How hot does Marlboro County get in summer?
How cold are winters in Marlboro County?
Track your own weather in Marlboro 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.