2025 Compare Climate & Weather:
Peoria, IL vs Ann Arbor, MI

Highlights

On average, there are 178 sunny days per year in Ann Arbor. Peoria averages 194 sunny days per year. The US average is 205 sunny days.

Ann Arbor, Michigan gets 36 inches of rain, on average, per year. Peoria, Illinois gets 37.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ann Arbor averages 43 inches of snow per year. Peoria averages 23 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ann Arbor, Michigan
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 16.5
Rain: averages 36 inches of rain a year
Snow: averages 43 inches of snow a year

Peoria, Illinois
Summer High: the July high is around 85.6 degrees
Winter Low: the January low is 15.5
Rain: averages 37.7 inches of rain a year
Snow: averages 23 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Ann Arbor is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

The annual BestPlaces Comfort Index for Peoria is 7.1 (10=best), which means it is more comfortable than most places in Illinois.

Today's Weather - Peoria, IL

60°F

Today's Weather - Ann Arbor, MI

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Peoria / Ann Arbor

July is the hottest month for Peoria with an average high temperature of 85.6°, which ranks it as about average compared to other places in Illinois. In Peoria, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Peoria are September, June and May.

July is the hottest month for Ann Arbor with an average high temperature of 82.8°, which ranks it as warmer than most places in Michigan. In Ann Arbor, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ann Arbor are June, August and September.

January has the coldest nighttime temperatures for Peoria with an average of 15.5°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

In Peoria, there are 19.9 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Peoria, there are 125.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Ann Arbor, there are 140.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Michigan.

In Peoria, there are 8.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

May is the wettest month in Peoria with 4.5 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 30% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in Peoria means that it is drier than most places in Illinois.


June is the wettest month in Ann Arbor with 3.7 inches of rain, and the driest month is February with 2.2 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 36.0 inches in Ann Arbor means that it is wetter than most places in Michigan.

May is the rainiest month in Peoria with 11.5 days of rain, and February is the driest month with only 7.5 rainy days. There are 110.1 rainy days annually in Peoria, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 23% chance of a rainy day.

December is the rainiest month in Ann Arbor with 13.9 days of rain, and September is the driest month with only 9.6 rainy days. There are 136.9 rainy days annually in Ann Arbor, which is rainier than most places in Michigan. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 23.0 inches in Peoria means that it is snowier than most places in Illinois.

An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.

December is the snowiest month in Peoria with 7.0 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Ann Arbor with 12.4 inches of snow, and 6 months of the year have significant snowfall.