2025 Compare Climate & Weather:
Charleston, SC vs Columbus, OH

Highlights

On average, there are 178 sunny days per year in Columbus. Charleston averages 209 sunny days per year. The US average is 205 sunny days.

Columbus, Ohio gets 39.7 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.

Columbus averages 22.4 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

Columbus, Ohio
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 21
Rain: averages 39.7 inches of rain a year
Snow: averages 22.4 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 Columbus is 7.1 (10=best), which means it is more comfortable than most places in Ohio.

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

71°F

Today's Weather - Columbus, OH

51°F

Average Monthly High / Low (°F)

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

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 Columbus with an average high temperature of 85.3°, which ranks it as warmer than most places in Ohio. In Columbus, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Columbus are September, June and May.

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 Columbus with an average of 21.0°. This is warmer than most places in Ohio.

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 Columbus, there are 16.0 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.

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 Columbus, there are 109.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Ohio.

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 Columbus, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Ohio.

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 wettest month in Columbus with 4.5 inches of rain, and the driest month is February with 2.2 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 39.7 inches in Columbus means that it is about average compared to other places in Ohio.

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 Columbus with 13.2 days of rain, and September is the driest month with only 8.1 rainy days. There are 130.0 rainy days annually in Columbus, which is about average compared to other places in Ohio. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% 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 22.4 inches in Columbus means that it is about average compared to other places in Ohio.

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 Columbus with 8.9 inches of snow, and 6 months of the year have significant snowfall.