2025 Compare Climate & Weather:
Downers Grove, IL vs Willowick, OH

Highlights

On average, there are 162 sunny days per year in Willowick. Downers Grove averages 192 sunny days per year. The US average is 205 sunny days.

Willowick, Ohio gets 36.7 inches of rain, on average, per year. Downers Grove, Illinois gets 38.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Willowick averages 65.4 inches of snow per year. Downers Grove averages 30.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Willowick, Ohio
Summer High: the July high is around 81.4 degrees
Winter Low: the January low is 21.5
Rain: averages 36.7 inches of rain a year
Snow: averages 65.4 inches of snow a year

Downers Grove, Illinois
Summer High: the July high is around 84.1 degrees
Winter Low: the January low is 14.9
Rain: averages 38.7 inches of rain a year
Snow: averages 30.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Willowick is 6.8 (10=best), which means it is less comfortable than most places in Ohio.

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

Today's Weather - Downers Grove, IL

72°F

Today's Weather - Willowick, OH

61°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Downers Grove / Willowick

July is the hottest month for Downers Grove with an average high temperature of 84.1°, which ranks it as cooler than most places in Illinois. In Downers Grove, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Downers Grove are June, September and August.

July is the hottest month for Willowick with an average high temperature of 81.4°, which ranks it as one of the coolest places in Ohio. In Willowick, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Willowick are June, August and July.

January has the coldest nighttime temperatures for Downers Grove with an average of 14.9°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Willowick with an average of 21.5°. This is warmer than most places in Ohio.

In Downers Grove, there are 8.6 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Willowick, there are 5.0 days annually when the high temperature is over 90°, which is one of the coolest places in Ohio.

In Downers Grove, there are 137.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Willowick, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Ohio.

In Downers Grove, there are 5.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

In Willowick, there are 1.3 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Ohio.

August is the wettest month in Downers Grove with 4.3 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 38.7 inches in Downers Grove means that it is about average compared to other places in Illinois.


June is the wettest month in Willowick with 3.8 inches of rain, and the driest month is February with 2.0 inches. The wettest season is Autumn with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in Willowick means that it is drier than most places in Ohio.

May is the rainiest month in Downers Grove with 12.0 days of rain, and September is the driest month with only 8.1 rainy days. There are 120.4 rainy days annually in Downers Grove, which is rainier than most places in Illinois. 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.

January is the rainiest month in Willowick with 17.4 days of rain, and August is the driest month with only 10.5 rainy days. There are 161.6 rainy days annually in Willowick, which is one of the rainiest places in Ohio. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 30.4 inches in Downers Grove means that it is snowier than most places in Illinois.

An annual snowfall of 65.4 inches in Willowick means that it is one of the snowiest places in Ohio.

January is the snowiest month in Downers Grove with 10.2 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Willowick with 18.0 inches of snow, and 6 months of the year have significant snowfall.