2025 Compare Climate & Weather:
Roanoke, VA vs Chattanooga, TN

Highlights

On average, there are 207 sunny days per year in Chattanooga. Roanoke averages 211 sunny days per year. The US average is 205 sunny days.

Chattanooga, Tennessee gets 51.1 inches of rain, on average, per year. Roanoke, Virginia gets 41.9 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. Roanoke averages 15.2 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

Roanoke, Virginia
Summer High: the July high is around 86.5 degrees
Winter Low: the January low is 26.1
Rain: averages 41.9 inches of rain a year
Snow: averages 15.2 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 Roanoke is 7.5 (10=best), which means it is one of the most pleasant places in Virginia.

Today's Weather - Roanoke, VA

72°F

Today's Weather - Chattanooga, TN

63°F

Average Monthly High / Low (°F)

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

July is the hottest month for Roanoke with an average high temperature of 86.5°, which ranks it as about average compared to other places in Virginia. In Roanoke, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Roanoke are September, May and June.

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 Roanoke with an average of 26.1°. This is warmer than most places in Virginia.

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

In Roanoke, there are 23.0 days annually when the high temperature is over 90°, which is about average compared to other places in Virginia.

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

In Roanoke, there are 88.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Virginia.

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 Roanoke, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Virginia.

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 Roanoke with 4.4 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 41.9 inches in Roanoke means that it is drier than most places in Virginia.


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.

May is the rainiest month in Roanoke with 12.9 days of rain, and October is the driest month with only 8.2 rainy days. There are 120.7 rainy days annually in Roanoke, which is rainier than most places in Virginia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 21% 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 15.2 inches in Roanoke means that it is about average compared to other places in Virginia.

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

February is the snowiest month in Roanoke with 5.1 inches of snow, and 4 months 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.