2025 Compare Climate & Weather:
Ann Arbor, MI vs Denver, CO

Highlights

On average, there are 245 sunny days per year in Denver. Ann Arbor averages 178 sunny days per year. The US average is 205 sunny days.

Denver, Colorado gets 16.7 inches of rain, on average, per year. Ann Arbor, Michigan gets 36 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Denver averages 60.2 inches of snow per year. Ann Arbor averages 43 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Denver, Colorado
Summer High: the July high is around 88.9 degrees
Winter Low: the January low is 17.9
Rain: averages 16.7 inches of rain a year
Snow: averages 60.2 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Denver is 7.3 (10=best), which means it is more comfortable than most places in Colorado.

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

Today's Weather - Ann Arbor, MI

58°F

Today's Weather - Denver, CO

51°F

Average Monthly High / Low (°F)

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

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.

July is the hottest month for Denver with an average high temperature of 88.9°, which ranks it as warmer than most places in Colorado. In Denver, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Denver are September, June and May.

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

December has the coldest nighttime temperatures for Denver with an average of 16.9°. This is warmer than most places in Colorado.

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 Denver, there are 33.7 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

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 Denver, there are 155.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

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.

In Denver, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

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 wettest month in Denver with 2.4 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 36% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 16.7 inches in Denver means that it is about average compared to other places in Colorado.

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.

May is the rainiest month in Denver with 10.1 days of rain, and January is the driest month with only 4.7 rainy days. There are 83.1 rainy days annually in Denver, which is rainier than most places in Colorado. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 18% chance of a rainy day.

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

An annual snowfall of 60.2 inches in Denver means that it is about average compared to other places in Colorado.

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

March is the snowiest month in Denver with 11.7 inches of snow, and 9 months of the year have significant snowfall.