2025 Compare Climate & Weather:
Wilmette, IL vs Arlington, VA

Highlights

On average, there are 201 sunny days per year in Arlington. Wilmette averages 190 sunny days per year. The US average is 205 sunny days.

Arlington, Virginia gets 43.3 inches of rain, on average, per year. Wilmette, Illinois gets 36.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Arlington averages 14.9 inches of snow per year. Wilmette averages 35.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Arlington, Virginia
Summer High: the July high is around 87.7 degrees
Winter Low: the January low is 26.5
Rain: averages 43.3 inches of rain a year
Snow: averages 14.9 inches of snow a year

Wilmette, Illinois
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 16.7
Rain: averages 36.4 inches of rain a year
Snow: averages 35.9 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Wilmette, IL

62°F

Today's Weather - Arlington, VA

67°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Wilmette / Arlington

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

July is the hottest month for Arlington with an average high temperature of 87.7°, which ranks it as warmer than most places in Virginia. In Arlington, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arlington are September, May and June.

January has the coldest nighttime temperatures for Wilmette with an average of 16.7°. This is about average compared to other places in Illinois.

January has the coldest nighttime temperatures for Arlington with an average of 26.5°. This is warmer than most places in Virginia.

In Wilmette, there are 13.9 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Arlington, there are 29.0 days annually when the high temperature is over 90°, which is hotter than most places in Virginia.

In Wilmette, there are 122.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Arlington, there are 78.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Virginia.

In Wilmette, there are 6.2 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

In Arlington, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Virginia.

August is the wettest month in Wilmette 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 Wilmette means that it is one of the driest places in Illinois.


May is the wettest month in Arlington with 4.3 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 43.3 inches in Arlington means that it is about average compared to other places in Virginia.

April is the rainiest month in Wilmette 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 Wilmette, 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.

May is the rainiest month in Arlington with 11.7 days of rain, and October is the driest month with only 8.3 rainy days. There are 117.0 rainy days annually in Arlington, 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 35.9 inches in Wilmette means that it is one of the snowiest places in Illinois.

An annual snowfall of 14.9 inches in Arlington means that it is about average compared to other places in Virginia.

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

January is the snowiest month in Arlington with 5.7 inches of snow, and 5 months of the year have significant snowfall.