2025 Compare Climate & Weather:
Grand Rapids, MI vs Ann Arbor, MI

Highlights

On average, there are 178 sunny days per year in Ann Arbor. Grand Rapids averages 158 sunny days per year. The US average is 205 sunny days.

Ann Arbor, Michigan gets 36 inches of rain, on average, per year. Grand Rapids, Michigan gets 37.3 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. Grand Rapids averages 64.2 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

Grand Rapids, Michigan
Summer High: the July high is around 82.2 degrees
Winter Low: the January low is 17.6
Rain: averages 37.3 inches of rain a year
Snow: averages 64.2 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 Grand Rapids is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

Today's Weather - Grand Rapids, MI

47°F

Today's Weather - Ann Arbor, MI

46°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grand Rapids / Ann Arbor

July is the hottest month for Grand Rapids with an average high temperature of 82.2°, which ranks it as warmer than most places in Michigan. In Grand Rapids, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Rapids are June, August and July.

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 Grand Rapids with an average of 17.6°. This is warmer than most places in Michigan.

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

In Grand Rapids, there are 6.8 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.

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 Grand Rapids, there are 133.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Michigan.

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 Grand Rapids, there are 4.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

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.

September is the wettest month in Grand Rapids with 4.1 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Winter with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 37.3 inches in Grand Rapids means that it is one of the wettest places in Michigan.


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.

December is the rainiest month in Grand Rapids with 13.5 days of rain, and July is the driest month with only 9.0 rainy days. There are 129.1 rainy days annually in Grand Rapids, which is about average compared to other places in Michigan. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 21% 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 64.2 inches in Grand Rapids means that it is snowier than most places in Michigan.

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

January is the snowiest month in Grand Rapids with 18.6 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.