2025 Compare Climate & Weather:
Chattanooga, TN vs Birmingham, AL

Highlights

On average, there are 213 sunny days per year in Birmingham. Chattanooga averages 207 sunny days per year. The US average is 205 sunny days.

Birmingham, Alabama gets 55.7 inches of rain, on average, per year. Chattanooga, Tennessee gets 51.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Birmingham averages 1.3 inches of snow per year. Chattanooga averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Birmingham, Alabama
Summer High: the July high is around 90.4 degrees
Winter Low: the January low is 32.3
Rain: averages 55.7 inches of rain a year
Snow: averages 1.3 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Birmingham is 7.3 (10=best), which means it is about average compared to other places in Alabama.

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

Today's Weather - Chattanooga, TN

62°F

Today's Weather - Birmingham, AL

63°F

Average Monthly High / Low (°F)

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

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.

July is the hottest month for Birmingham with an average high temperature of 90.4°, which ranks it as about average compared to other places in Alabama. In Birmingham, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Birmingham are May, October and April.

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

January has the coldest nighttime temperatures for Birmingham with an average of 32.3°. This is about average compared to other places in Alabama.

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

In Birmingham, there are 50.8 days annually when the high temperature is over 90°, which is about average compared to other places in Alabama.

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 Birmingham, there are 53.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Alabama.

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.

In Birmingham, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Alabama.

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.


March is the wettest month in Birmingham with 5.3 inches of rain, and the driest month is October with 3.5 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 55.7 inches in Birmingham means that it is about average compared to other places in Alabama.

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.

July is the rainiest month in Birmingham with 11.1 days of rain, and September is the driest month with only 7.0 rainy days. There are 112.2 rainy days annually in Birmingham, which is rainier than most places in Alabama. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

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

An annual snowfall of 1.3 inches in Birmingham means that it is snowier than most places in Alabama.

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

March is the snowiest month in Birmingham with 0.5 inches of snow, and 2 months of the year have significant snowfall.