Overton County Climate

Overton County, Tennessee

JanFebMarAprMayJunJulAugSepOctNovDec57.4°AVG °F

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

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
4.7"
4.7"
5.0"
4.8"
4.7"
4.8"
4.6"
4.3"
3.9"
2.9"
3.7"
5.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring48°65°14.5"Summer73°77°13.6"Fall48°70°10.5"Winter37°40°14.8"20°40°60°80°100°

National Comparison

Warmer than 60% of US counties
Wetter than 80% of US counties
More seasonal variation than 31% of US counties

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

What is the average temperature in Overton County?
The average annual temperature in Overton County, TN is 57.4°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Overton County get?
Overton County receives an average of 53.5 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Overton County?
Yes, Overton County receives an average of 2.3 inches of snowfall per year according to NOAA climate normals.
How hot does Overton County get in summer?
The average summer temperature (June-August) in Overton County is 75.1°F. The county experiences an average of 28.2 days per year above 90°F.
How cold are winters in Overton County?
The average winter temperature (December-February) in Overton County is 39.2°F. January, typically the coldest month, averages 36.9°F.

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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.

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