2025 Compare Climate & Weather:
Atlanta, GA vs Chattanooga, TN

Highlights

On average, there are 207 sunny days per year in Chattanooga. Atlanta averages 217 sunny days per year. The US average is 205 sunny days.

Chattanooga, Tennessee gets 51.1 inches of rain, on average, per year. Atlanta, Georgia gets 51.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chattanooga averages 1.5 inches of snow per year. Atlanta averages 1.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chattanooga, Tennessee
Summer High: the July high is around 89 degrees
Winter Low: the January low is 28.9
Rain: averages 51.1 inches of rain a year
Snow: averages 1.5 inches of snow a year

Atlanta, Georgia
Summer High: the July high is around 88.3 degrees
Winter Low: the January low is 32.6
Rain: averages 51.5 inches of rain a year
Snow: averages 1.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Chattanooga is 7.5 (10=best), which means it is one of the most pleasant places in Tennessee.

The annual BestPlaces Comfort Index for Atlanta is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

Today's Weather - Atlanta, GA

61°F

Today's Weather - Chattanooga, TN

59°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Atlanta / Chattanooga

July is the hottest month for Atlanta with an average high temperature of 88.3°, which ranks it as cooler than most places in Georgia. In Atlanta, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Atlanta are May, September and April.

July is the hottest month for Chattanooga with an average high temperature of 89.0°, which ranks it as warmer than most places in Tennessee. In Chattanooga, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chattanooga are May, September and October.

January has the coldest nighttime temperatures for Atlanta with an average of 32.6°. This is about average compared to other places in Georgia.

January has the coldest nighttime temperatures for Chattanooga with an average of 28.9°. This is one of the warmest places in Tennessee.

In Atlanta, there are 31.5 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Chattanooga, there are 39.0 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.

In Atlanta, there are 46.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Georgia.

In Chattanooga, there are 71.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Tennessee.

In Atlanta, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

In Chattanooga, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Tennessee.

July is the wettest month in Atlanta with 5.1 inches of rain, and the driest month is October with 3.5 inches. The wettest season is Autumn with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 51.5 inches in Atlanta means that it is wetter than most places in Georgia.


December is the wettest month in Chattanooga with 4.9 inches of rain, and the driest month is October with 3.2 inches. The wettest season is Spring with 29% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 51.1 inches in Chattanooga means that it is drier than most places in Tennessee.

July is the rainiest month in Atlanta with 11.2 days of rain, and October is the driest month with only 7.0 rainy days. There are 109.3 rainy days annually in Atlanta, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 20% chance of a rainy day.

December is the rainiest month in Chattanooga with 9.2 days of rain, and October is the driest month with only 6.3 rainy days. There are 99.0 rainy days annually in Chattanooga, which is one of the least rainy places in Tennessee. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 1.4 inches in Atlanta means that it is snowier than most places in Georgia.

An annual snowfall of 1.5 inches in Chattanooga means that it is one of the least snowy places in Tennessee.

January is the snowiest month in Atlanta with 0.6 inches of snow, and 1 month of the year have significant snowfall.

January is the snowiest month in Chattanooga with 0.6 inches of snow, and 1 month of the year have significant snowfall.