Climate in Zip 22066 (Great Falls, VA)

Great Falls (zip 22066), Virginia gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Great Falls (zip 22066) averages 22 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Great Falls (zip 22066). The US average is 205 sunny days.

Great Falls (zip 22066) gets some kind of precipitation, on average, 116 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 86 degrees
Winter Low: the January low is 24
Rain: averages 42 inches of rain a year
Snow: averages 22 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the 22066 zip code is 7.3 (10=best), which means it is about average compared to other places in Virginia.

July is the hottest month for the 22066 zip code with an average high temperature of 85.7°, which ranks it as cooler than most places in Virginia. In the 22066 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 22066 zip code are September, June and May.

In the 22066 zip code, there are 18.4 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

January has the coldest nighttime temperatures for the 22066 zip code with an average of 23.5°. This is colder than most places in Virginia.

In the 22066 zip code, there are 103.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Virginia.

In the 22066 zip code, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

The humidity is usually acceptable in the 22066 zip code 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 the 22066 zip code.

May is the wettest month in the 22066 zip code with 4.4 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 42.4 inches in the 22066 zip code means that it is drier than most places in Virginia.

May is the rainiest month in the 22066 zip code with 12.0 days of rain, and October is the driest month with only 8.2 rainy days. There are 116.2 rainy days annually in the 22066 zip code, which is about average compared to other places in Virginia. 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 21.5 inches in the 22066 zip code means that it is one of the snowiest places in Virginia. February is the snowiest month in the 22066 zip code with 7.8 inches of snow, and 5 months of the year have significant snowfall.

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