Decatur County Climate
Decatur County, Tennessee
Avg Annual Temp
60.2°F
Annual Precip
57.1"
Annual Snowfall
1.6"
Extreme Heat Days
64
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Decatur County Weather
Above Average National Temperatures
Decatur County's 60.2°F annual average reflects a climate much warmer than the national median. This region experiences consistent humidity and high annual precipitation totals.
Warmer and Wetter Than Average
At 60.2°F, the county is 2.1 degrees warmer than the Tennessee average of 58.1°F. Its 57.1 inches of annual rainfall also exceeds the state average, marking it as a particularly moist region.
The Heat of West Tennessee
Decatur faces 64 extreme heat days, far exceeding the 38 days recorded in DeKalb County to the east. The 60.2°F average temperature makes it one of the warmer spots in the immediate region.
Extreme Heat and Mild Winters
Summers are demanding, with 64 days hitting 90°F or higher and a July average of 79.9°F. Winters provide relief with very little snow, averaging only 1.6 inches annually.
Durable Cooling and Rain Gear
With 64 days of extreme heat, a robust and efficient air conditioning system is a resident's top priority. The 57.1 inches of rain suggests keeping reliable umbrellas and waterproof boots on hand year-round.
Frequently Asked Questions
What is the average temperature in Decatur County?
How much rain does Decatur County get?
Does it snow in Decatur County?
How hot does Decatur County get in summer?
How cold are winters in Decatur County?
Track your own weather in Decatur County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.