Tattnall County Climate
Tattnall County, Georgia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.1°F
Annual Precip
49.8"
Annual Snowfall
0.0"
Extreme Heat Days
92
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,266
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Tattnall County
Climate Verdict
Tattnall County has a warm, averaging 66.1°F year-round, moderately wet with 49.8 inches of annual precipitation, significant summer heat with 92.3 days annually above 90°F, virtually no measurable snowfall. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 49.0°F. summers are hot, with July averaging 81.9°F. The 33°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Tattnall County closely matches the Georgia statewide average temperature of 63.7°F, the county experiences 27.32005420054199 more extreme heat days than the state average.
Climate Profile
About Tattnall County Weather
Deep South Warmth and High Humidity
Tattnall County is significantly warmer than the national median, with an annual average of 66.1°F. This coastal plain climate is known for its heavy air and long, hot summers.
Well Above the Georgia Average Temperature
With an annual average of 66.1°F, Tattnall is much warmer than the state average of 63.7°F. It is slightly drier than the rest of the state, averaging 49.8 inches of rain.
Warmer and Drier Than Sumter
Tattnall is nearly two degrees warmer than Sumter County to the west. It also sees nearly 30 more extreme heat days than Sumter, highlighting the intensity of its summer season.
Extreme Heat for Three Full Months
The county endures 92 days per year where temperatures exceed 90°F, peaking with a July average of 81.9°F. Winters are very mild, averaging 49.0°F in January with no recorded snow.
Prioritize Heat Safety and Air Quality
With 92 days of extreme heat, residents must have reliable cooling and should monitor heat indices for outdoor work. Since snow is unheard of, winter prep can focus almost entirely on mild-weather maintenance.
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.