2025 Compare Climate & Weather:
Evanston, IL vs Lafayette, CO

Highlights

On average, there are 246 sunny days per year in Lafayette. Evanston averages 193 sunny days per year. The US average is 205 sunny days.

Lafayette, Colorado gets 17.3 inches of rain, on average, per year. Evanston, Illinois gets 36.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Lafayette averages 69.4 inches of snow per year. Evanston averages 35.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Lafayette, Colorado
Summer High: the July high is around 90.3 degrees
Winter Low: the January low is 20.2
Rain: averages 17.3 inches of rain a year
Snow: averages 69.4 inches of snow a year

Evanston, Illinois
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 17.2
Rain: averages 36.4 inches of rain a year
Snow: averages 35.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Lafayette is 7.2 (10=best), which means it is more comfortable than most places in Colorado.

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

Today's Weather - Evanston, IL

49°F

Today's Weather - Lafayette, CO

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Evanston / Lafayette

July is the hottest month for Evanston with an average high temperature of 83.1°, which ranks it as one of the coolest places in Illinois. In Evanston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Evanston are June, September and August.

July is the hottest month for Lafayette with an average high temperature of 90.3°, which ranks it as warmer than most places in Colorado. In Lafayette, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lafayette are September, May and June.

January has the coldest nighttime temperatures for Evanston with an average of 17.2°. This is about average compared to other places in Illinois.

December has the coldest nighttime temperatures for Lafayette with an average of 19.3°. This is one of the warmest places in Colorado.

In Evanston, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Lafayette, there are 44.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Evanston, there are 119.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Lafayette, there are 142.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Colorado.

In Evanston, there are 5.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

In Lafayette, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

August is the wettest month in Evanston with 4.3 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.4 inches in Evanston means that it is one of the driest places in Illinois.


May is the wettest month in Lafayette with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 17.3 inches in Lafayette means that it is about average compared to other places in Colorado.

April is the rainiest month in Evanston with 12.2 days of rain, and February is the driest month with only 8.2 rainy days. There are 125.3 rainy days annually in Evanston, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% chance of a rainy day.

May is the rainiest month in Lafayette with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 87.3 rainy days annually in Lafayette, which is rainier than most places in Colorado. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 35.9 inches in Evanston means that it is one of the snowiest places in Illinois.

An annual snowfall of 69.4 inches in Lafayette means that it is snowier than most places in Colorado.

January is the snowiest month in Evanston with 11.3 inches of snow, and 6 months of the year have significant snowfall.

March is the snowiest month in Lafayette with 13.5 inches of snow, and 9 months of the year have significant snowfall.