Climate in Montgomery County, Maryland

Montgomery County, Maryland gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Montgomery County averages 18 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Montgomery County. The US average is 205 sunny days.

Montgomery County gets some kind of precipitation, on average, 113 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 25
Rain: averages 43 inches of rain a year
Snow: averages 18 inches of snow a year

BESTPLACES COMFORT INDEX

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

July is the hottest month for Montgomery County with an average high temperature of 86.5°, which ranks it as cooler than most places in Maryland. In Montgomery County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Montgomery County are September, May and June.

In Montgomery County, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in Maryland.

January has the coldest nighttime temperatures for Montgomery County with an average of 25.2°. This is about average compared to other places in Maryland.

In Montgomery County, there are 88.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Maryland.

In Montgomery County, there are 0.4 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Maryland.

The humidity is usually acceptable in Montgomery County but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most uncomfortably humid months in Montgomery County.

May is the wettest month in Montgomery County with 4.3 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 43.0 inches in Montgomery County means that it is drier than most places in Maryland.

May is the rainiest month in Montgomery County with 11.4 days of rain, and October is the driest month with only 8.2 rainy days. There are 112.5 rainy days annually in Montgomery County, 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 18.3 inches in Montgomery County means that it is snowier than most places in Maryland. January is the snowiest month in Montgomery County with 7.0 inches of snow, and 5 months of the year have significant snowfall.

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