2025 Compare Climate & Weather:
Havre de Grace, MD vs Charleston, SC

Highlights

On average, there are 209 sunny days per year in Charleston. Havre de Grace 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. Havre de Grace, Maryland gets 46.1 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. Havre de Grace averages 15.3 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

Havre de Grace, Maryland
Summer High: the July high is around 86.9 degrees
Winter Low: the January low is 23.1
Rain: averages 46.1 inches of rain a year
Snow: averages 15.3 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 Havre de Grace is 7.2 (10=best), which means it is less comfortable than most places in Maryland.

Today's Weather - Havre de Grace, MD

63°F

Today's Weather - Charleston, SC

71°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Havre de Grace / Charleston

July is the hottest month for Havre de Grace with an average high temperature of 86.9°, which ranks it as cooler than most places in Maryland. In Havre de Grace, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Havre de Grace are September, June and May.

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 Havre de Grace with an average of 23.1°. This is colder than most places in Maryland.

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 Havre de Grace, there are 22.4 days annually when the high temperature is over 90°, which is cooler than most places in Maryland.

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 Havre de Grace, there are 101.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maryland.

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 Havre de Grace, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.

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.

September is the wettest month in Havre de Grace with 4.8 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Winter with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 46.1 inches in Havre de Grace means that it is one of the wettest places in Maryland.


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.

May is the rainiest month in Havre de Grace with 11.9 days of rain, and October is the driest month with only 8.9 rainy days. There are 123.7 rainy days annually in Havre de Grace, which is rainier than most places in Maryland. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% 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 15.3 inches in Havre de Grace means that it is about average compared to other places in Maryland.

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

January is the snowiest month in Havre de Grace with 6.5 inches of snow, and 4 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.