2025 Compare Climate & Weather:
Downers Grove, IL vs Bloomington, IN

Highlights

On average, there are 184 sunny days per year in Bloomington. Downers Grove averages 192 sunny days per year. The US average is 205 sunny days.

Bloomington, Indiana gets 47.7 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.

Bloomington averages 17.2 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

Bloomington, Indiana
Summer High: the July high is around 84.7 degrees
Winter Low: the January low is 20.4
Rain: averages 47.7 inches of rain a year
Snow: averages 17.2 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 Bloomington is 7.2 (10=best), which means it is one of the most pleasant places in Indiana.

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

54°F

Today's Weather - Bloomington, IN

59°F

Average Monthly High / Low (°F)

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

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 Bloomington with an average high temperature of 84.7°, which ranks it as warmer than most places in Indiana. In Bloomington, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bloomington are September, June and May.

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 Bloomington with an average of 20.4°. This is warmer than most places in Indiana.

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 Bloomington, there are 13.7 days annually when the high temperature is over 90°, which is about average compared to other places in Indiana.

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

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 Bloomington, there are 3.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Indiana.

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.


May is the wettest month in Bloomington with 5.7 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 47.7 inches in Bloomington means that it is one of the wettest places in Indiana.

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.

May is the rainiest month in Bloomington with 12.2 days of rain, and August is the driest month with only 7.7 rainy days. There are 118.5 rainy days annually in Bloomington, which is about average compared to other places in Indiana. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% 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 17.2 inches in Bloomington means that it is less snowy than most places in Indiana.

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 Bloomington with 6.1 inches of snow, and 4 months of the year have significant snowfall.