weatherbycounty

Morgan County Climate

Morgan County, Tennessee

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec55.8°AVG °F

Avg Annual Temp

55.8°F

Annual Precip

56.4"

Annual Snowfall

4.9"

Extreme Heat Days

14

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
4.8"
4.6"
5.0"
5.9"
4.7"
5.1"
5.7"
3.4"
4.3"
3.3"
3.9"
5.7"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

7a

Minimum winter temperature range for plant survival

Growing Degree Days

3,723

Supports most vegetables & fruits

Last spring frost (32°F): 04/21
First fall frost (32°F): 10/17

Seasonal Overview

Comfort ZoneSpring47°64°15.6"Summer71°74°14.2"Fall46°67°11.5"Winter36°39°15.2"20°40°60°80°100°

National Comparison

Warmer than 55% of US counties
Wetter than 90% of US counties
More seasonal variation than 28% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Morgan County

Climate Verdict

Morgan County has a mild, with an average annual temperature of 55.8°F, very wet conditions receiving 56.4 inches of precipitation annually, rare extreme heat with only 13.7 days above 90°F annually, light snow averaging 4.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 35.9°F. summers are warm — July averages 74.3°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

Morgan County closely matches the Tennessee statewide average temperature of 58.0°F, the county experiences 22.75992831541217 fewer extreme heat days than the state average.

Climate Profile

About Morgan County Weather

Cooler High Elevations in East Tennessee

Morgan County is the only county in this group with an annual average of 55.8°F, nearly matching the national median of 55°F. Its elevation provides a cooler climate than most of the Southeast.

One of Tennessee's Coolest Counties

Morgan County's 55.8°F average is significantly cooler than the Tennessee state average of 58.1°F. It provides a refuge from the intense heat found in the state's lower-lying western counties.

Milder Summers than Neighboring Regions

Morgan experiences only 14 days of extreme heat, compared to 55 days in neighboring Monroe County. It also receives 4.9 inches of snow, which is higher than most surrounding areas.

Cold Winters and Pleasant Summers

July stays relatively mild with an average of 74.3°F, while January dips to 35.9°F. The county sees the most snowfall in this group, averaging 4.9 inches per year.

Invest in Heating and Snow Prep

With a winter average of 38.1°F and higher snowfall, reliable home heating and winter tires are recommended. Cooling costs are typically lower here, as there are only 14 days of extreme heat.

Frequently Asked Questions

What is the average temperature in Morgan County?
The average annual temperature in Morgan County, TN is 55.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Morgan County get?
Morgan County receives an average of 56.4 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 Morgan County?
Yes, Morgan County receives an average of 4.9 inches of snowfall per year according to NOAA climate normals.
How hot does Morgan County get in summer?
The average summer temperature (June-August) in Morgan County is 72.9°F. The county experiences an average of 14 days per year above 90°F.
How cold are winters in Morgan County?
The average winter temperature (December-February) in Morgan County is 38.1°F. January, typically the coldest month, averages 35.9°F.

Track your own weather in Morgan County

Ambient Weather personal weather stations give you hyperlocal climate data.

Shop Weather Stations →

Sponsored

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
← Back to Tennessee