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Franklin County Climate

Franklin County, Tennessee

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec58.3°AVG °F

Avg Annual Temp

58.3°F

Annual Precip

60.9"

Annual Snowfall

4.1"

Extreme Heat Days

21

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
5.1"
5.3"
5.6"
5.7"
4.8"
5.5"
5.1"
4.3"
4.7"
3.8"
4.8"
6.1"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

7b

Minimum winter temperature range for plant survival

Growing Degree Days

4,316

Excellent for heat-loving crops

Last spring frost (32°F): 04/06
First fall frost (32°F): 11/04

Seasonal Overview

Comfort ZoneSpring50°66°16.1"Summer73°76°14.9"Fall49°70°13.3"Winter38°42°16.5"20°40°60°80°100°

National Comparison

Warmer than 65% of US counties
Wetter than 96% of US counties
More seasonal variation than 26% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Franklin County

Climate Verdict

Franklin County has a mild, with an average annual temperature of 58.3°F, very wet conditions receiving 60.9 inches of precipitation annually, occasional hot days — 20.8 per year above 90°F, light snow averaging 4.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 38.4°F. summers are warm — July averages 76.4°F. The 38°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

Franklin County closely matches the Tennessee statewide average temperature of 58.0°F, it is also noticeably wetter, receiving 5.2 inches more precipitation than the state average, the county experiences 15.65992831541217 fewer extreme heat days than the state average.

Climate Profile

About Franklin County Weather

Warm Subtropical Environment

Franklin County's average temperature of 58.3°F sits well above the national median. The region is characterized by high humidity and significant year-round rainfall totaling over 60 inches.

Aligning with Tennessee's Thermal Baseline

At 58.3°F, Franklin County closely mirrors the Tennessee state average of 58.1°F. It represents the typical climatic experience for the southern portion of the state.

Wetter and Warmer than Fentress

Franklin receives 60.9 inches of rain annually, which is higher than Fentress County's 59.5 inches. Its 38.4°F January average provides a milder winter start than its neighbors to the north.

Three Weeks of Intense Heat

The county experiences 21 days per year with temperatures hitting or exceeding 90°F. Winter remains relatively open, with annual snowfall averaging only 4.1 inches.

Manage Humidity and Mid-Range Snow

Active dehumidification is essential for home comfort during the muggy 75.1°F summer months. While snowfall is light, residents should still keep basic salt and shovels ready for the occasional 4-inch winter event.

Frequently Asked Questions

What is the average temperature in Franklin County?
The average annual temperature in Franklin County, TN is 58.3°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Franklin County get?
Franklin County receives an average of 60.9 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 Franklin County?
Yes, Franklin County receives an average of 4.1 inches of snowfall per year according to NOAA climate normals.
How hot does Franklin County get in summer?
The average summer temperature (June-August) in Franklin County is 75.1°F. The county experiences an average of 21 days per year above 90°F.
How cold are winters in Franklin County?
The average winter temperature (December-February) in Franklin County is 40.6°F. January, typically the coldest month, averages 38.4°F.

Track your own weather in Franklin County

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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.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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