2025 Compare Climate & Weather:
Austin, TX vs Chantilly, VA

Highlights

On average, there are 197 sunny days per year in Chantilly. Austin averages 228 sunny days per year. The US average is 205 sunny days.

Chantilly, Virginia gets 42.9 inches of rain, on average, per year. Austin, Texas gets 34.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chantilly averages 21.5 inches of snow per year. Austin averages 0.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chantilly, Virginia
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 23.5
Rain: averages 42.9 inches of rain a year
Snow: averages 21.5 inches of snow a year

Austin, Texas
Summer High: the July high is around 95 degrees
Winter Low: the January low is 38.2
Rain: averages 34.9 inches of rain a year
Snow: averages 0.3 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Austin is 7.1 (10=best), which means it is about average compared to other places in Texas.

Today's Weather - Austin, TX

78°F

Today's Weather - Chantilly, VA

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Austin / Chantilly

August is the hottest month for Austin with an average high temperature of 96.2°, which ranks it as warmer than most places in Texas. In Austin, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Austin are April, October and March.

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

January has the coldest nighttime temperatures for Austin with an average of 38.2°. This is about average compared to other places in Texas.

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

In Austin, there are 105.9 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In Chantilly, there are 19.0 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Austin, there are 24.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In Chantilly, there are 103.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Virginia.

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

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

June is the wettest month in Austin with 4.5 inches of rain, and the driest month is January with 2.2 inches. The wettest season is Winter with 28% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 34.9 inches in Austin means that it is about average compared to other places in Texas.


May is the wettest month in Chantilly with 4.6 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 42.9 inches in Chantilly means that it is drier than most places in Virginia.

March is the rainiest month in Austin with 8.6 days of rain, and August is the driest month with only 4.7 rainy days. There are 79.3 rainy days annually in Austin, which is rainier than most places in Texas. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 21% chance of a rainy day.

May is the rainiest month in Chantilly with 12.2 days of rain, and October is the driest month with only 8.1 rainy days. There are 119.5 rainy days annually in Chantilly, 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 22% chance of a rainy day.

An annual snowfall of 0.3 inches in Austin means that it is about average compared to other places in Texas.

An annual snowfall of 21.5 inches in Chantilly means that it is one of the snowiest places in Virginia.

January is the snowiest month in Austin with 0.2 inches of snow, and no months of the year have significant snowfall.

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