Clayton County Climate
Clayton County, Georgia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
62.7°F
Annual Precip
51.7"
Annual Snowfall
1.5"
Extreme Heat Days
53
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,355
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clayton County
Climate Verdict
Clayton County has a warm, averaging 62.7°F year-round, moderately wet with 51.7 inches of annual precipitation, occasional hot days — 52.95 per year above 90°F, light snow averaging 1.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 43.6°F. summers are hot, with July averaging 80.3°F. The 37°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
Clayton County closely matches the Georgia statewide average temperature of 63.7°F.
Climate Profile
About Clayton County Weather
A Subtropical Haven in the South
Clayton County maintains an average annual temperature of 62.7°F, placing it significantly warmer than the national median. This humid subtropical climate experiences over 51 inches of annual precipitation, keeping the landscape lush throughout the year.
Cooler than the Georgia Average
Despite its Southern location, Clayton's 62.7°F average temperature sits exactly one degree below the Georgia state average of 63.7°F. This positioning makes it one of the more temperate areas in a state known for sweltering summers.
Comparing the Atlanta Metro Fringe
Clayton remains warmer than nearby Cobb County, which averages 60.1°F, but is more similar to Coweta County at 61.4°F. It bridges the gap between the cooler northern highlands and the deep Southern heat found further downstate.
Sweltering Summers and Mild Winters
July brings intense heat with an average of 80.3°F and 53 days per year surpassing the 90°F mark. Winters remain brief and mild, averaging 45.7°F with only 1.5 inches of annual snowfall on record.
Prepare for High Humidity and Heat
Residents should prioritize efficient HVAC systems to combat nearly two months of extreme heat days. Outdoor enthusiasts should plan activities for the morning hours to avoid the peak humidity that accompanies the 51.7 inches of annual rainfall.
Frequently Asked Questions
What is the average temperature in Clayton County?
How much rain does Clayton County get?
Does it snow in Clayton County?
How hot does Clayton County get in summer?
How cold are winters in Clayton County?
Track your own weather in Clayton 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.