2025 Compare Climate & Weather:
Mankato, MN vs Wheaton, IL

Highlights

On average, there are 186 sunny days per year in Wheaton. Mankato averages 193 sunny days per year. The US average is 205 sunny days.

Wheaton, Illinois gets 38.6 inches of rain, on average, per year. Mankato, Minnesota gets 31.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Wheaton averages 29.8 inches of snow per year. Mankato averages 42.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Wheaton, Illinois
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 15
Rain: averages 38.6 inches of rain a year
Snow: averages 29.8 inches of snow a year

Mankato, Minnesota
Summer High: the July high is around 83.5 degrees
Winter Low: the January low is 5.1
Rain: averages 31.7 inches of rain a year
Snow: averages 42.6 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Mankato is 6.7 (10=best), which means it is one of the most pleasant places in Minnesota.

Today's Weather - Mankato, MN

80°F

Today's Weather - Wheaton, IL

89°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Mankato / Wheaton

July is the hottest month for Mankato with an average high temperature of 83.5°, which ranks it as one of the hottest places in Minnesota. In Mankato, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mankato are June, August and September.

July is the hottest month for Wheaton with an average high temperature of 84.2°, which ranks it as cooler than most places in Illinois. In Wheaton, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Wheaton are June, September and August.

January has the coldest nighttime temperatures for Mankato with an average of 5.1°. This is warmer than most places in Minnesota.

January has the coldest nighttime temperatures for Wheaton with an average of 15.0°. This is colder than most places in Illinois.

In Mankato, there are 13.0 days annually when the high temperature is over 90°, which is one of the hottest places in Minnesota.

In Wheaton, there are 9.3 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Mankato, there are 159.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Minnesota.

In Wheaton, there are 138.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Mankato, there are 28.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Minnesota.

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

June is the wettest month in Mankato with 4.8 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 31.7 inches in Mankato means that it is wetter than most places in Minnesota.


August is the wettest month in Wheaton with 4.2 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 38.6 inches in Wheaton means that it is about average compared to other places in Illinois.

June is the rainiest month in Mankato with 10.8 days of rain, and February is the driest month with only 4.5 rainy days. There are 92.6 rainy days annually in Mankato, which is less rainy than most places in Minnesota. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 18% chance of a rainy day.

May is the rainiest month in Wheaton with 11.9 days of rain, and September is the driest month with only 8.0 rainy days. There are 119.2 rainy days annually in Wheaton, 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 42.6 inches in Mankato means that it is less snowy than most places in Minnesota.

An annual snowfall of 29.8 inches in Wheaton means that it is snowier than most places in Illinois.

December is the snowiest month in Mankato with 10.1 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Wheaton with 9.8 inches of snow, and 6 months of the year have significant snowfall.