2025 Compare Climate & Weather:
McLean, VA vs Evanston, IL

Highlights

On average, there are 193 sunny days per year in Evanston. McLean averages 203 sunny days per year. The US average is 205 sunny days.

Evanston, Illinois gets 36.4 inches of rain, on average, per year. McLean, Virginia gets 43.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Evanston averages 35.9 inches of snow per year. McLean averages 20.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Evanston, Illinois
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 17.2
Rain: averages 36.4 inches of rain a year
Snow: averages 35.9 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Evanston is 6.9 (10=best), which means it is less comfortable than most places in Illinois.

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

Today's Weather - McLean, VA

70°F

Today's Weather - Evanston, IL

46°F

Average Monthly High / Low (°F)

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

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.

July is the hottest month for Evanston with an average high temperature of 83.1°, which ranks it as one of the coolest places in Illinois. In Evanston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Evanston are June, September and August.

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

January has the coldest nighttime temperatures for Evanston with an average of 17.2°. This is about average compared to other places in Illinois.

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 Evanston, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

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 Evanston, there are 119.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

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.

In Evanston, there are 5.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

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.


August is the wettest month in Evanston with 4.3 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.4 inches in Evanston means that it is one of the driest places in Illinois.

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.

April is the rainiest month in Evanston with 12.2 days of rain, and February is the driest month with only 8.2 rainy days. There are 125.3 rainy days annually in Evanston, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% chance of a rainy day.

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

An annual snowfall of 35.9 inches in Evanston means that it is one of the snowiest places in Illinois.

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

January is the snowiest month in Evanston with 11.3 inches of snow, and 6 months of the year have significant snowfall.