2025 Compare Climate & Weather:
Bellevue, WA vs North Potomac, MD

Highlights

On average, there are 201 sunny days per year in North Potomac. Bellevue averages 155 sunny days per year. The US average is 205 sunny days.

North Potomac, Maryland gets 41.9 inches of rain, on average, per year. Bellevue, Washington gets 42.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

North Potomac averages 19.1 inches of snow per year. Bellevue averages 5.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

North Potomac, Maryland
Summer High: the July high is around 84.9 degrees
Winter Low: the January low is 24.6
Rain: averages 41.9 inches of rain a year
Snow: averages 19.1 inches of snow a year

Bellevue, Washington
Summer High: the July high is around 75.9 degrees
Winter Low: the January low is 36.6
Rain: averages 42.1 inches of rain a year
Snow: averages 5.1 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Bellevue, WA

58°F

Today's Weather - North Potomac, MD

68°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bellevue / North Potomac

August is the hottest month for Bellevue with an average high temperature of 76.4°, which ranks it as cooler than most places in Washington. In Bellevue, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bellevue are August, July and September.

July is the hottest month for North Potomac with an average high temperature of 84.9°, which ranks it as one of the coolest places in Maryland. In North Potomac, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for North Potomac are September, June and May.

December has the coldest nighttime temperatures for Bellevue with an average of 35.3°. This is warmer than most places in Washington.

January has the coldest nighttime temperatures for North Potomac with an average of 24.6°. This is about average compared to other places in Maryland.

In Bellevue, there are 2.1 days annually when the high temperature is over 90°, which is cooler than most places in Washington.

In North Potomac, there are 14.5 days annually when the high temperature is over 90°, which is one of the coolest places in Maryland.

In Bellevue, there are 29.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.

In North Potomac, there are 93.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Maryland.

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

In North Potomac, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.

November is the wettest month in Bellevue with 6.8 inches of rain, and the driest month is July with 1.0 inches. The wettest season is Spring with 38% of yearly precipitation and 9% occurs in Autumn, which is the driest season. The annual rainfall of 42.1 inches in Bellevue means that it is about average compared to other places in Washington.


May is the wettest month in North Potomac with 4.3 inches of rain, and the driest month is February with 2.7 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 41.9 inches in North Potomac means that it is drier than most places in Maryland.

November is the rainiest month in Bellevue with 19.2 days of rain, and August is the driest month with only 5.4 rainy days. There are 160.5 rainy days annually in Bellevue, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 13% chance of a rainy day.

May is the rainiest month in North Potomac with 11.8 days of rain, and August is the driest month with only 8.3 rainy days. There are 113.8 rainy days annually in North Potomac, 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.

An annual snowfall of 5.1 inches in Bellevue means that it is about average compared to other places in Washington.

An annual snowfall of 19.1 inches in North Potomac means that it is snowier than most places in Maryland.

December is the snowiest month in Bellevue with 2.0 inches of snow, and 4 months of the year have significant snowfall.

January is the snowiest month in North Potomac with 8.0 inches of snow, and 5 months of the year have significant snowfall.