2025 Compare Climate & Weather:
Bethesda, MD vs Glen Allen, VA

Highlights

On average, there are 207 sunny days per year in Glen Allen. Bethesda averages 197 sunny days per year. The US average is 205 sunny days.

Glen Allen, Virginia gets 43.9 inches of rain, on average, per year. Bethesda, Maryland gets 42.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Glen Allen averages 12.8 inches of snow per year. Bethesda averages 17.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Glen Allen, Virginia
Summer High: the July high is around 88.7 degrees
Winter Low: the January low is 27.7
Rain: averages 43.9 inches of rain a year
Snow: averages 12.8 inches of snow a year

Bethesda, Maryland
Summer High: the July high is around 86.7 degrees
Winter Low: the January low is 25.3
Rain: averages 42.7 inches of rain a year
Snow: averages 17.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Glen Allen is 7.4 (10=best), which means it is more comfortable than most places in Virginia.

The annual BestPlaces Comfort Index for Bethesda is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

Today's Weather - Bethesda, MD

69°F

Today's Weather - Glen Allen, VA

67°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bethesda / Glen Allen

July is the hottest month for Bethesda with an average high temperature of 86.7°, which ranks it as cooler than most places in Maryland. In Bethesda, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bethesda are September, May and June.

July is the hottest month for Glen Allen with an average high temperature of 88.7°, which ranks it as warmer than most places in Virginia. In Glen Allen, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Glen Allen are May, September and June.

January has the coldest nighttime temperatures for Bethesda with an average of 25.3°. This is about average compared to other places in Maryland.

January has the coldest nighttime temperatures for Glen Allen with an average of 27.7°. This is warmer than most places in Virginia.

In Bethesda, there are 23.8 days annually when the high temperature is over 90°, which is about average compared to other places in Maryland.

In Glen Allen, there are 36.3 days annually when the high temperature is over 90°, which is hotter than most places in Virginia.

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

In Glen Allen, there are 79.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Virginia.

In Bethesda, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

In Glen Allen, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Virginia.

May is the wettest month in Bethesda with 4.2 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 42.7 inches in Bethesda means that it is drier than most places in Maryland.


August is the wettest month in Glen Allen with 4.4 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 43.9 inches in Glen Allen means that it is about average compared to other places in Virginia.

May is the rainiest month in Bethesda with 11.6 days of rain, and August is the driest month with only 8.3 rainy days. There are 113.9 rainy days annually in Bethesda, which is about average compared to other 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.

July is the rainiest month in Glen Allen with 10.3 days of rain, and October is the driest month with only 7.0 rainy days. There are 106.8 rainy days annually in Glen Allen, which is less rainy than most places in Virginia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 17.2 inches in Bethesda means that it is snowier than most places in Maryland.

An annual snowfall of 12.8 inches in Glen Allen means that it is about average compared to other places in Virginia.

January is the snowiest month in Bethesda with 6.9 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Glen Allen with 4.8 inches of snow, and 4 months of the year have significant snowfall.