2025 Compare Climate & Weather:
Darien, CT vs McLean, VA

Highlights

On average, there are 203 sunny days per year in McLean. Darien averages 175 sunny days per year. The US average is 205 sunny days.

McLean, Virginia gets 43.8 inches of rain, on average, per year. Darien, Connecticut gets 50.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

McLean averages 20.1 inches of snow per year. Darien averages 29.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

McLean, Virginia
Summer High: the July high is around 86 degrees
Winter Low: the January low is 24.5
Rain: averages 43.8 inches of rain a year
Snow: averages 20.1 inches of snow a year

Darien, Connecticut
Summer High: the July high is around 83.6 degrees
Winter Low: the January low is 21.1
Rain: averages 50.8 inches of rain a year
Snow: averages 29.9 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Darien is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

Today's Weather - Darien, CT

61°F

Today's Weather - McLean, VA

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Darien / McLean

July is the hottest month for Darien with an average high temperature of 83.6°, which ranks it as warmer than most places in Connecticut. In Darien, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Darien are June, September and August.

July is the hottest month for McLean with an average high temperature of 86.0°, which ranks it as cooler than most places in Virginia. In McLean, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for McLean are September, May and June.

January has the coldest nighttime temperatures for Darien with an average of 21.1°. This is warmer than most places in Connecticut.

January has the coldest nighttime temperatures for McLean with an average of 24.5°. This is about average compared to other places in Virginia.

In Darien, there are 8.9 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

In McLean, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Virginia.

In Darien, there are 110.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.

In McLean, there are 94.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Virginia.

In Darien, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Connecticut.

In McLean, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Virginia.

September is the wettest month in Darien with 4.7 inches of rain, and the driest month is February with 3.2 inches. The wettest season is Winter with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.8 inches in Darien means that it is wetter than most places in Connecticut.


May is the wettest month in McLean with 4.4 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 27% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 43.8 inches in McLean means that it is about average compared to other places in Virginia.

April is the rainiest month in Darien with 12.3 days of rain, and October is the driest month with only 8.9 rainy days. There are 123.7 rainy days annually in Darien, which is rainier than most places in Connecticut. 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 McLean with 11.9 days of rain, and August is the driest month with only 8.6 rainy days. There are 117.0 rainy days annually in McLean, 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 23% chance of a rainy day.

An annual snowfall of 29.9 inches in Darien means that it is less snowy than most places in Connecticut.

An annual snowfall of 20.1 inches in McLean means that it is snowier than most places in Virginia.

February is the snowiest month in Darien with 9.0 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in McLean with 7.7 inches of snow, and 5 months of the year have significant snowfall.