2025 Compare Climate & Weather:
Chattanooga, TN vs Swampscott, MA

Highlights

On average, there are 201 sunny days per year in Swampscott. Chattanooga averages 207 sunny days per year. The US average is 205 sunny days.

Swampscott, Massachusetts gets 47.9 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.

Swampscott averages 41.8 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

Swampscott, Massachusetts
Summer High: the July high is around 80.3 degrees
Winter Low: the January low is 18.5
Rain: averages 47.9 inches of rain a year
Snow: averages 41.8 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 Swampscott is 6.9 (10=best), which means it is about average compared to other places in Massachusetts.

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

66°F

Today's Weather - Swampscott, MA

43°F

Average Monthly High / Low (°F)

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

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 Swampscott with an average high temperature of 80.3°, which ranks it as cooler than most places in Massachusetts. In Swampscott, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Swampscott are August, July and June.

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 Swampscott with an average of 18.5°. This is about average compared to other places in Massachusetts.

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

In Swampscott, there are 6.3 days annually when the high temperature is over 90°, which is about average compared to other places in Massachusetts.

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 Swampscott, there are 121.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Massachusetts.

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 Swampscott, there are 2.2 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.

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 Swampscott with 4.6 inches of rain, and the driest month is February with 3.5 inches. The wettest season is Summer with 27% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 47.9 inches in Swampscott means that it is about average compared to other places in Massachusetts.

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.

May is the rainiest month in Swampscott with 11.9 days of rain, and February is the driest month with only 8.5 rainy days. There are 122.1 rainy days annually in Swampscott, which is about average compared to other places in Massachusetts. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 24% 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 41.8 inches in Swampscott means that it is about average compared to other places in Massachusetts.

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

January is the snowiest month in Swampscott with 14.1 inches of snow, and 6 months of the year have significant snowfall.