Anderson County Climate
Anderson County, Tennessee
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
58.0°F
Annual Precip
57.6"
Annual Snowfall
3.8"
Extreme Heat Days
34
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
4,275
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Anderson County
Climate Verdict
Anderson County has a mild, with an average annual temperature of 58.0°F, very wet conditions receiving 57.6 inches of precipitation annually, occasional hot days — 33.5 per year above 90°F, light snow averaging 3.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 37.3°F. summers are warm — July averages 76.9°F. The 40°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
Anderson County closely matches the Tennessee statewide average temperature of 58.0°F.
Climate Profile
About Anderson County Weather
Warmer and Wetter Than the National Median
Anderson County's 58.0°F average annual temperature sits 3 degrees above the national median. This humid subtropical climate receives 57.6 inches of rain, far exceeding the typical U.S. county.
A Mirror of the Tennessee State Average
The county's 58.0°F average temperature almost perfectly matches the Tennessee state average of 58.1°F. However, it is slightly wetter than its peers, receiving nearly 2 inches more rain than the state average.
Cooler Highlands Compared to Southern Neighbors
Anderson remains cooler than nearby Bradley County by 1.6 degrees. It serves as a middle ground between the warmer Tennessee Valley and the cooler ridge lines of Campbell County to the north.
Steamy Summers and Mild Mountain Winters
July averages 76.9°F with 34 days of extreme heat reaching 90°F or higher. Winters are relatively gentle, averaging 39.6°F with a light 3.8 inches of annual snowfall.
Manage Humidity and Occasional Heat Waves
Residents should prioritize dehumidification and HVAC maintenance to handle over a month of 90-degree days. The 57.6 inches of rain also necessitates robust gutter systems and drainage planning.
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.