2025 Compare Climate & Weather:
Baton Rouge, LA vs Charleston, SC

Highlights

On average, there are 209 sunny days per year in Charleston. Baton Rouge averages 214 sunny days per year. The US average is 205 sunny days.

Charleston, South Carolina gets 48.3 inches of rain, on average, per year. Baton Rouge, Louisiana gets 62.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Charleston averages 0.4 inches of snow per year. Baton Rouge averages 0.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Baton Rouge, Louisiana
Summer High: the July high is around 91.6 degrees
Winter Low: the January low is 39.9
Rain: averages 62.8 inches of rain a year
Snow: averages 0.1 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Baton Rouge is 6.9 (10=best), which means it is more comfortable than most places in Louisiana.

Today's Weather - Baton Rouge, LA

73°F

Today's Weather - Charleston, SC

71°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Baton Rouge / Charleston

August is the hottest month for Baton Rouge with an average high temperature of 91.9°, which ranks it as cooler than most places in Louisiana. In Baton Rouge, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Baton Rouge are April, October and March.

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.

January has the coldest nighttime temperatures for Baton Rouge with an average of 39.9°. This is about average compared to other places in Louisiana.

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

In Baton Rouge, there are 84.4 days annually when the high temperature is over 90°, which is hotter than most places in Louisiana.

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 Baton Rouge, there are 20.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Louisiana.

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

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.

June is the wettest month in Baton Rouge with 6.7 inches of rain, and the driest month is November with 4.4 inches. The wettest season is Autumn with 29% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 62.8 inches in Baton Rouge means that it is wetter than most places in Louisiana.


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.

July is the rainiest month in Baton Rouge with 12.3 days of rain, and October is the driest month with only 6.7 rainy days. There are 109.2 rainy days annually in Baton Rouge, which is rainier than most places in Louisiana. 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.

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.

An annual snowfall of 0.1 inches in Baton Rouge means that it is snowier than most places in Louisiana.

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

February is the snowiest month in Baton Rouge with 0.1 inches of snow, and no months of the year have significant snowfall.

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