2025 Compare Climate & Weather:
Charleston, SC vs Bangor, ME

Highlights

On average, there are 177 sunny days per year in Bangor. Charleston averages 209 sunny days per year. The US average is 205 sunny days.

Bangor, Maine gets 42.4 inches of rain, on average, per year. Charleston, South Carolina gets 48.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Bangor averages 68.9 inches of snow per year. Charleston averages 0.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Bangor, Maine
Summer High: the July high is around 79.7 degrees
Winter Low: the January low is 7
Rain: averages 42.4 inches of rain a year
Snow: averages 68.9 inches of snow a year

Charleston, South Carolina
Summer High: the July high is around 89.9 degrees
Winter Low: the January low is 39.3
Rain: averages 48.3 inches of rain a year
Snow: averages 0.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Bangor is 6.4 (10=best), which means it is about average compared to other places in Maine.

The annual BestPlaces Comfort Index for Charleston is 7.2 (10=best), which means it is less comfortable than most places in South Carolina.

Today's Weather - Charleston, SC

72°F

Today's Weather - Bangor, ME

47°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Charleston / Bangor

July is the hottest month for Charleston with an average high temperature of 89.9°, which ranks it as cooler than most places in South Carolina. In Charleston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Charleston are October, May and April.

July is the hottest month for Bangor with an average high temperature of 79.7°, which ranks it as warmer than most places in Maine. In Bangor, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bangor are August, July and June.

January has the coldest nighttime temperatures for Charleston with an average of 39.3°. This is one of the warmest places in South Carolina.

January has the coldest nighttime temperatures for Bangor with an average of 7.0°. This is colder than most places in Maine.

In Charleston, there are 41.1 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

In Bangor, there are 4.2 days annually when the high temperature is over 90°, which is hotter than most places in Maine.

In Charleston, there are 17.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Carolina.

In Bangor, there are 158.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maine.

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

In Bangor, there are 20.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maine.

August is the wettest month in Charleston with 6.7 inches of rain, and the driest month is May with 2.5 inches. The wettest season is Autumn with 36% of yearly precipitation and 19% occurs in Summer, which is the driest season. The annual rainfall of 48.3 inches in Charleston means that it is wetter than most places in South Carolina.


November is the wettest month in Bangor with 4.2 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Winter with 28% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 42.4 inches in Bangor means that it is drier than most places in Maine.

August is the rainiest month in Charleston with 11.7 days of rain, and May is the driest month with only 6.8 rainy days. There are 105.9 rainy days annually in Charleston, which is rainier than most places in South Carolina. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 21% chance of a rainy day.

May is the rainiest month in Bangor with 11.8 days of rain, and February is the driest month with only 8.3 rainy days. There are 121.8 rainy days annually in Bangor, which is less rainy than most places in Maine. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 0.4 inches in Charleston means that it is less snowy than most places in South Carolina.

An annual snowfall of 68.9 inches in Bangor means that it is about average compared to other places in Maine.

December is the snowiest month in Charleston with 0.2 inches of snow, and no months of the year have significant snowfall.

January is the snowiest month in Bangor with 20.0 inches of snow, and 6 months of the year have significant snowfall.