2025 Compare Climate & Weather:
Great Falls, VA vs Blacksburg, VA

Highlights

On average, there are 215 sunny days per year in Blacksburg. Great Falls averages 196 sunny days per year. The US average is 205 sunny days.

Blacksburg, Virginia gets 40.1 inches of rain, on average, per year. Great Falls, Virginia gets 42.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Blacksburg averages 23.7 inches of snow per year. Great Falls averages 21.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Blacksburg, Virginia
Summer High: the July high is around 82.9 degrees
Winter Low: the January low is 21.7
Rain: averages 40.1 inches of rain a year
Snow: averages 23.7 inches of snow a year

Great Falls, Virginia
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 23.5
Rain: averages 42.4 inches of rain a year
Snow: averages 21.5 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Great Falls, VA

69°F

Today's Weather - Blacksburg, VA

68°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Great Falls / Blacksburg

July is the hottest month for Great Falls with an average high temperature of 85.8°, which ranks it as cooler than most places in Virginia. In Great Falls, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Great Falls are September, June and May.

July is the hottest month for Blacksburg with an average high temperature of 82.9°, which ranks it as one of the coolest places in Virginia. In Blacksburg, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Blacksburg are June, September and August.

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

January has the coldest nighttime temperatures for Blacksburg with an average of 21.7°. This is colder than most places in Virginia.

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

In Blacksburg, there are 6.9 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Great Falls, 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 Blacksburg, there are 122.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

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

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

May is the wettest month in Great Falls 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 Great Falls means that it is drier than most places in Virginia.


May is the wettest month in Blacksburg with 4.4 inches of rain, and the driest month is October with 2.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 40.1 inches in Blacksburg means that it is one of the driest places in Virginia.

May is the rainiest month in Great Falls with 12.0 days of rain, and October is the driest month with only 8.2 rainy days. There are 116.3 rainy days annually in Great Falls, 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.

May is the rainiest month in Blacksburg with 12.7 days of rain, and September is the driest month with only 7.9 rainy days. There are 123.9 rainy days annually in Blacksburg, which is rainier 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 21.5 inches in Great Falls means that it is one of the snowiest places in Virginia.

An annual snowfall of 23.7 inches in Blacksburg means that it is one of the snowiest places in Virginia.

February is the snowiest month in Great Falls with 7.8 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Blacksburg with 7.3 inches of snow, and 6 months of the year have significant snowfall.