Cobb County Climate

Cobb County, Georgia

JanFebMarAprMayJunJulAugSepOctNovDec60.1°AVG °F

Avg Annual Temp

60.1°F

Annual Precip

55.1"

Annual Snowfall

0.8"

Extreme Heat Days

10.2

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
4.8"
4.9"
5.0"
3.9"
4.1"
4.5"
6.3"
4.8"
3.7"
3.8"
4.5"
4.8"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring53°67°13.0"Summer74°76°15.6"Fall51°71°12.0"Winter43°46°14.6"20°40°60°80°100°

National Comparison

Warmer than 69% of US counties
Wetter than 83% of US counties
More seasonal variation than 11% of US counties

Climate Profile

About Cobb County Weather

Moderate Temperatures for the Region

Cobb County features an average annual temperature of 60.1°F, which is milder than many of its Southern peers. The county receives a generous 55.1 inches of rain annually, significantly outpacing the national average for precipitation.

Cooler than the State Median

Cobb's 60.1°F average is nearly four degrees cooler than the Georgia state average of 63.7°F. This makes it a refreshing outlier in a state where heat often dominates the headlines.

The Coolest in the Metro Area

Compared to Clayton County's 62.7°F, Cobb offers a noticeably cooler climate for North Georgia residents. It also sees far fewer extreme heat days than neighbors located just a few dozen miles to the south.

Temperate Summers with Light Snow

Summer heat is surprisingly manageable with only 10 days per year reaching 90°F. Winters are crisp at 44.5°F and occasionally bring a dusting of snow, averaging 0.8 inches annually.

Prepare for Rain and Mild Weather

With 55.1 inches of annual rainfall, residents should ensure proper home drainage and reliable rain gear. Since extreme heat is rare, homeowners can focus on moderate climate control rather than heavy-duty industrial cooling.

Frequently Asked Questions

What is the average temperature in Cobb County?
The average annual temperature in Cobb County, GA is 60.1°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Cobb County get?
Cobb County receives an average of 55.1 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 Cobb County?
Yes, Cobb County receives an average of 0.8 inches of snowfall per year according to NOAA climate normals.
How hot does Cobb County get in summer?
The average summer temperature (June-August) in Cobb County is 75.2°F. The county experiences an average of 10.2 days per year above 90°F.
How cold are winters in Cobb County?
The average winter temperature (December-February) in Cobb County is 44.5°F. January, typically the coldest month, averages 42.5°F.

Track your own weather in Cobb County

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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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