2025 Compare Climate & Weather:
Dover, DE vs Columbia, SC

Highlights

On average, there are 217 sunny days per year in Columbia. Dover averages 198 sunny days per year. The US average is 205 sunny days.

Columbia, South Carolina gets 45.5 inches of rain, on average, per year. Dover, Delaware gets 45.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Columbia averages 0.9 inches of snow per year. Dover averages 15.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Columbia, South Carolina
Summer High: the July high is around 93.6 degrees
Winter Low: the January low is 35
Rain: averages 45.5 inches of rain a year
Snow: averages 0.9 inches of snow a year

Dover, Delaware
Summer High: the July high is around 87.2 degrees
Winter Low: the January low is 25.6
Rain: averages 45.2 inches of rain a year
Snow: averages 15.2 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Dover is 7.4 (10=best), which means it is one of the most pleasant places in Delaware.

Today's Weather - Dover, DE

61°F

Today's Weather - Columbia, SC

67°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Dover / Columbia

July is the hottest month for Dover with an average high temperature of 87.2°, which ranks it as one of the hottest places in Delaware. In Dover, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dover are September, May and June.

July is the hottest month for Columbia with an average high temperature of 93.6°, which ranks it as one of the hottest places in South Carolina. In Columbia, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Columbia are April, October and May.

January has the coldest nighttime temperatures for Dover with an average of 25.6°. This is warmer than most places in Delaware.

January has the coldest nighttime temperatures for Columbia with an average of 35.0°. This is warmer than most places in South Carolina.

In Dover, there are 23.3 days annually when the high temperature is over 90°, which is one of the hottest places in Delaware.

In Columbia, there are 79.0 days annually when the high temperature is over 90°, which is one of the hottest places in South Carolina.

In Dover, there are 87.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Delaware.

In Columbia, there are 39.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Carolina.

In Dover, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Delaware.

In Columbia, 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 Dover with 4.3 inches of rain, and the driest month is February with 3.0 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 45.2 inches in Dover means that it is about average compared to other places in Delaware.


July is the wettest month in Columbia with 5.3 inches of rain, and the driest month is April with 2.7 inches. The wettest season is Autumn with 34% of yearly precipitation and 21% occurs in Summer, which is the driest season. The annual rainfall of 45.5 inches in Columbia means that it is drier than most places in South Carolina.

April is the rainiest month in Dover with 10.8 days of rain, and October is the driest month with only 7.9 rainy days. There are 111.3 rainy days annually in Dover, which is less rainy than most places in Delaware. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

July is the rainiest month in Columbia with 11.2 days of rain, and September is the driest month with only 7.3 rainy days. There are 108.1 rainy days annually in Columbia, which is rainier than most places in South Carolina. The rainiest season is Autumn when it rains 30% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 15.2 inches in Dover means that it is one of the snowiest places in Delaware.

An annual snowfall of 0.9 inches in Columbia means that it is about average compared to other places in South Carolina.

February is the snowiest month in Dover with 7.0 inches of snow, and 4 months of the year have significant snowfall.

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