Carter County Climate
Carter County, Tennessee
Avg Annual Temp
55.9°F
Annual Precip
48.0"
Annual Snowfall
6.0"
Extreme Heat Days
17.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Carter County Weather
Temperate Mountain Air Above National Medians
Carter County averages 55.9°F annually, which is slightly warmer than the national median but cool for the South. The higher elevation provides a break from the intense heat found in lower-lying states.
One of Tennessee's Cooler Regions
At 55.9°F, the county is notably cooler than the state average of 58.1°F. It is also drier than most of the state, receiving 48.0 inches of rain compared to the Tennessee average of 55.9 inches.
Lower Heat Risk Than Central Tennessee
The county sees only 18 extreme heat days per year, far fewer than the 54 days seen in Cheatham County. Its 6.0 inches of annual snowfall is nearly double that of many western neighbors.
Mild Summers and Crisp Winters
Summer averages are a comfortable 73.1°F, and July rarely becomes oppressive with an average of 74.5°F. Winters are cold but not extreme, averaging 38.1°F from December through February.
Gear Up for Outdoor Recreation
The 18 extreme heat days mean heavy air conditioning is less critical than in the rest of Tennessee. Residents should prepare for 6.0 inches of snow with basic winter tires and insulated layers.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.