2025 Compare Climate & Weather:
Crystal Lake, IL vs Milwaukee, WI

Highlights

On average, there are 191 sunny days per year in Milwaukee. Crystal Lake averages 186 sunny days per year. The US average is 205 sunny days.

Milwaukee, Wisconsin gets 34.8 inches of rain, on average, per year. Crystal Lake, Illinois gets 36.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Milwaukee averages 44.6 inches of snow per year. Crystal Lake averages 35.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Milwaukee, Wisconsin
Summer High: the July high is around 82.7 degrees
Winter Low: the January low is 13.8
Rain: averages 34.8 inches of rain a year
Snow: averages 44.6 inches of snow a year

Crystal Lake, Illinois
Summer High: the July high is around 81.8 degrees
Winter Low: the January low is 12.7
Rain: averages 36.7 inches of rain a year
Snow: averages 35.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Milwaukee is 6.8 (10=best), which means it is one of the most pleasant places in Wisconsin.

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

Today's Weather - Crystal Lake, IL

41°F

Today's Weather - Milwaukee, WI

38°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Crystal Lake / Milwaukee

July is the hottest month for Crystal Lake with an average high temperature of 81.8°, which ranks it as one of the coolest places in Illinois. In Crystal Lake, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Crystal Lake are June, August and July.

July is the hottest month for Milwaukee with an average high temperature of 82.7°, which ranks it as warmer than most places in Wisconsin. In Milwaukee, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Milwaukee are June, August and September.

January has the coldest nighttime temperatures for Crystal Lake with an average of 12.7°. This is one of the coldest places in Illinois.

January has the coldest nighttime temperatures for Milwaukee with an average of 13.8°. This is one of the warmest places in Wisconsin.

In Crystal Lake, there are 6.9 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Milwaukee, there are 11.4 days annually when the high temperature is over 90°, which is one of the hottest places in Wisconsin.

In Crystal Lake, there are 138.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Milwaukee, there are 135.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Wisconsin.

In Crystal Lake, there are 11.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Milwaukee, there are 9.4 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wisconsin.

August is the wettest month in Crystal Lake with 4.4 inches of rain, and the driest month is January with 1.7 inches. The wettest season is Autumn with 34% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in Crystal Lake means that it is drier than most places in Illinois.


June is the wettest month in Milwaukee with 4.2 inches of rain, and the driest month is January with 1.6 inches. The wettest season is Autumn with 34% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 34.8 inches in Milwaukee means that it is wetter than most places in Wisconsin.

May is the rainiest month in Crystal Lake with 11.6 days of rain, and February is the driest month with only 7.6 rainy days. There are 114.2 rainy days annually in Crystal Lake, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

May is the rainiest month in Milwaukee with 12.0 days of rain, and February is the driest month with only 9.0 rainy days. There are 123.3 rainy days annually in Milwaukee, which is one of the rainiest places in Wisconsin. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.

An annual snowfall of 35.1 inches in Crystal Lake means that it is one of the snowiest places in Illinois.

An annual snowfall of 44.6 inches in Milwaukee means that it is snowier than most places in Wisconsin.

January is the snowiest month in Crystal Lake with 10.9 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Milwaukee with 13.2 inches of snow, and 6 months of the year have significant snowfall.