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Obion County Climate

JanFebMarAprMayJunJulAugSepOctNovDec57.8°AVG °F

Avg Annual Temp

57.8°F

Annual Precip

53.5"

Annual Snowfall

5.8"

Extreme Heat Days

41

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
4.2"
4.4"
5.1"
5.3"
5.6"
4.3"
4.0"
3.3"
3.8"
3.9"
4.3"
5.1"
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

4,413

Excellent for heat-loving crops

Last spring frost (32°F): 04/03
First fall frost (32°F): 11/01

Seasonal Overview

Comfort ZoneSpring48°67°16.0"Summer75°78°11.6"Fall48°70°12.1"Winter35°39°13.8"20°40°60°80°100°

National Comparison

Warmer than 63% of US counties
Wetter than 85% of US counties
More seasonal variation than 48% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Obion County

Climate Verdict

Obion County has a mild, with an average annual temperature of 57.8°F, moderately wet with 53.5 inches of annual precipitation, occasional hot days — 41 per year above 90°F, light snow averaging 5.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 35.5°F. summers are warm — July averages 78.0°F. The 43°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

Obion County closely matches the Tennessee statewide average temperature of 58.0°F, it is somewhat drier than average for Tennessee.

Climate Profile

About Obion County Weather

A True Four-Season Valley Climate

Obion County averages 57.8°F annually, which is slightly warmer than the national median of 55°F. It experiences cold winter snaps and hot, humid summer months typical of the Mississippi Valley.

Cooler than the Tennessee Average

At 57.8°F, Obion sits slightly below the Tennessee state average of 58.1°F. Its northern location on the Kentucky border contributes to its lower ranking in state temperature charts.

Snowier than Southern Tennessee Counties

Obion averages 5.8 inches of snow, far exceeding the 1.0 inch found in McNairy County to the south. It is also slightly drier than the state average, receiving 53.5 inches of rain.

Cold Winters and Consistent Heat

January is chilly with an average of 35.5°F, contributing to the nearly 6 inches of annual snow. Summers remain hot, featuring 41 days of temperatures reaching at least 90°F.

Prepare for Snow and Cold Snaps

Because Obion receives 5.8 inches of snow, keeping salt and shovels ready is essential for winter. HVAC systems should be rated for both the 41 days of extreme heat and the freezing January nights.

Frequently Asked Questions

What is the average temperature in Obion County?
The average annual temperature in Obion County, TN is 57.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Obion County get?
Obion 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 Obion County?
Yes, Obion County receives an average of 5.8 inches of snowfall per year according to NOAA climate normals.
How hot does Obion County get in summer?
The average summer temperature (June-August) in Obion County is 76.7°F. The county experiences an average of 41 days per year above 90°F.
How cold are winters in Obion County?
The average winter temperature (December-February) in Obion County is 38.0°F. January, typically the coldest month, averages 35.5°F.

Track your own weather in Obion 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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