2025 Compare Climate & Weather:
St. Paul, MN vs Carol Stream, IL

Highlights

On average, there are 187 sunny days per year in Carol Stream. St. Paul averages 194 sunny days per year. The US average is 205 sunny days.

Carol Stream, Illinois gets 37.9 inches of rain, on average, per year. St. Paul, Minnesota gets 32.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Carol Stream averages 30.5 inches of snow per year. St. Paul averages 52.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Carol Stream, Illinois
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 13.6
Rain: averages 37.9 inches of rain a year
Snow: averages 30.5 inches of snow a year

St. Paul, Minnesota
Summer High: the July high is around 83.2 degrees
Winter Low: the January low is 7.2
Rain: averages 32.3 inches of rain a year
Snow: averages 52.1 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for St. Paul is 6.6 (10=best), which means it is more comfortable than most places in Minnesota.

Today's Weather - St. Paul, MN

57°F

Today's Weather - Carol Stream, IL

53°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Paul / Carol Stream

July is the hottest month for St. Paul with an average high temperature of 83.2°, which ranks it as warmer than most places in Minnesota. In St. Paul, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Paul are June, August and July.

July is the hottest month for Carol Stream with an average high temperature of 85.3°, which ranks it as about average compared to other places in Illinois. In Carol Stream, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Carol Stream are September, June and August.

January has the coldest nighttime temperatures for St. Paul with an average of 7.2°. This is one of the warmest places in Minnesota.

January has the coldest nighttime temperatures for Carol Stream with an average of 13.6°. This is colder than most places in Illinois.

In St. Paul, there are 8.6 days annually when the high temperature is over 90°, which is hotter than most places in Minnesota.

In Carol Stream, there are 16.3 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In St. Paul, there are 148.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Minnesota.

In Carol Stream, there are 144.1 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In St. Paul, there are 21.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Minnesota.

In Carol Stream, there are 8.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

June is the wettest month in St. Paul with 4.7 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 42% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 32.3 inches in St. Paul means that it is wetter than most places in Minnesota.


August is the wettest month in Carol Stream with 4.5 inches of rain, and the driest month is January with 1.6 inches. The wettest season is Autumn with 34% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 37.9 inches in Carol Stream means that it is drier than most places in Illinois.

May is the rainiest month in St. Paul with 12.2 days of rain, and February is the driest month with only 5.9 rainy days. There are 110.9 rainy days annually in St. Paul, which is rainier than most places in Minnesota. The rainiest season is Autumn when it rains 29% of the time and the driest is Spring with only a 19% chance of a rainy day.

May is the rainiest month in Carol Stream with 12.0 days of rain, and February is the driest month with only 7.9 rainy days. There are 119.0 rainy days annually in Carol Stream, 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.

An annual snowfall of 52.1 inches in St. Paul means that it is snowier than most places in Minnesota.

An annual snowfall of 30.5 inches in Carol Stream means that it is snowier than most places in Illinois.

December is the snowiest month in St. Paul with 11.3 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Carol Stream with 10.3 inches of snow, and 6 months of the year have significant snowfall.