2025 Compare Climate & Weather:
Morton Grove, IL vs Casper, WY

Highlights

On average, there are 220 sunny days per year in Casper. Morton Grove averages 188 sunny days per year. The US average is 205 sunny days.

Casper, Wyoming gets 13 inches of rain, on average, per year. Morton Grove, Illinois gets 36.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Casper averages 70.3 inches of snow per year. Morton Grove averages 36 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Casper, Wyoming
Summer High: the July high is around 88.2 degrees
Winter Low: the January low is 15.4
Rain: averages 13 inches of rain a year
Snow: averages 70.3 inches of snow a year

Morton Grove, 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 36 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Casper is 6.8 (10=best), which means it is more comfortable than most places in Wyoming.

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

Today's Weather - Morton Grove, IL

49°F

Today's Weather - Casper, WY

35°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Morton Grove / Casper

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

July is the hottest month for Casper with an average high temperature of 88.2°, which ranks it as warmer than most places in Wyoming. In Casper, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Casper are June, September and August.

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

January has the coldest nighttime temperatures for Casper with an average of 15.4°. This is one of the warmest places in Wyoming.

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

In Casper, there are 29.7 days annually when the high temperature is over 90°, which is hotter than most places in Wyoming.

In Morton Grove, there are 122.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Casper, there are 168.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Wyoming.

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

In Casper, there are 12.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wyoming.

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


May is the wettest month in Casper with 2.2 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Summer with 35% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 13.0 inches in Casper means that it is about average compared to other places in Wyoming.

April is the rainiest month in Morton Grove with 12.2 days of rain, and February is the driest month with only 8.3 rainy days. There are 125.3 rainy days annually in Morton Grove, 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 Casper with 10.0 days of rain, and January is the driest month with only 5.0 rainy days. There are 79.2 rainy days annually in Casper, which is rainier than most places in Wyoming. The rainiest season is Summer when it rains 32% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 36.0 inches in Morton Grove means that it is one of the snowiest places in Illinois.

An annual snowfall of 70.3 inches in Casper means that it is snowier than most places in Wyoming.

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

March is the snowiest month in Casper with 11.5 inches of snow, and 9 months of the year have significant snowfall.