2025 Compare Climate & Weather:
Flagstaff, AZ vs Wilmette, IL

Highlights

On average, there are 190 sunny days per year in Wilmette. Flagstaff averages 266 sunny days per year. The US average is 205 sunny days.

Wilmette, Illinois gets 36.4 inches of rain, on average, per year. Flagstaff, Arizona gets 20.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Wilmette averages 35.9 inches of snow per year. Flagstaff averages 81 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Wilmette, Illinois
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 16.7
Rain: averages 36.4 inches of rain a year
Snow: averages 35.9 inches of snow a year

Flagstaff, Arizona
Summer High: the July high is around 81.7 degrees
Winter Low: the January low is 14.3
Rain: averages 20.7 inches of rain a year
Snow: averages 81 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Flagstaff is 6.9 (10=best), which means it is one of the least comfortable places in Arizona.

Today's Weather - Flagstaff, AZ

66°F

Today's Weather - Wilmette, IL

53°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Flagstaff / Wilmette

July is the hottest month for Flagstaff with an average high temperature of 81.7°, which ranks it as one of the coolest places in Arizona. In Flagstaff, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Flagstaff are June, August and July.

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

January has the coldest nighttime temperatures for Flagstaff with an average of 14.3°. This is one of the coldest places in Arizona.

January has the coldest nighttime temperatures for Wilmette with an average of 16.7°. This is about average compared to other places in Illinois.

In Flagstaff, there are 3.4 days annually when the high temperature is over 90°, which is one of the coolest places in Arizona.

In Wilmette, there are 13.9 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Flagstaff, there are 210.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Arizona.

In Wilmette, there are 122.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Flagstaff, there are 7.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Arizona.

In Wilmette, there are 6.2 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

August is the wettest month in Flagstaff with 3.3 inches of rain, and the driest month is June with 0.3 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 20.7 inches in Flagstaff means that it is wetter than most places in Arizona.


August is the wettest month in Wilmette 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 Wilmette means that it is one of the driest places in Illinois.

August is the rainiest month in Flagstaff with 13.8 days of rain, and June is the driest month with only 2.8 rainy days. There are 83.4 rainy days annually in Flagstaff, which is one of the rainiest places in Arizona. The rainiest season is Autumn when it rains 34% of the time and the driest is Summer with only a 20% chance of a rainy day.

April is the rainiest month in Wilmette 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 Wilmette, 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.

An annual snowfall of 81.0 inches in Flagstaff means that it is one of the snowiest places in Arizona.

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

January is the snowiest month in Flagstaff with 19.1 inches of snow, and 8 months of the year have significant snowfall.

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