Overton County Climate
Overton County, Tennessee
Avg Annual Temp
57.4°F
Annual Precip
53.5"
Annual Snowfall
2.3"
Extreme Heat Days
28.2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Overton County Weather
Temperate Living on the Highland Rim
Overton County’s annual average temperature of 57.4°F is slightly above the national median of 55°F. It enjoys a temperate climate with moderate rainfall and manageable summer heat.
Cooler and Drier than State Norms
Overton is cooler than the 58.1°F Tennessee average and drier than the 55.9-inch state precipitation average. This makes it one of the more temperate and less humid areas in Middle Tennessee.
Lower Heat Frequency than Neighbors
Overton records only 28 extreme heat days, which is nearly half the amount seen in Moore County. It also receives 53.5 inches of rain, keeping it drier than many regional peers.
Moderate Summers and Brisk Winters
The county enjoys a July average of 76.6°F, which is milder than many other parts of the state. Winters bring a January average of 36.9°F and a modest 2.3 inches of snowfall.
Versatile Wardrobes for Moderate Seasons
With only 28 extreme heat days and light snowfall, residents can focus on versatile, layered clothing. The 53.5 inches of rain suggests a need for standard home roof maintenance and gutter care.
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.