2025 Compare Climate & Weather:
Mundelein, IL vs Sterling, VA

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Highlights

On average, there are 197 sunny days per year in Sterling. Mundelein averages 187 sunny days per year. The US average is 205 sunny days.

Sterling, Virginia gets 42 inches of rain, on average, per year. Mundelein, Illinois gets 36.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sterling averages 21.5 inches of snow per year. Mundelein averages 40.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sterling, Virginia
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 23.5
Rain: averages 42 inches of rain a year
Snow: averages 21.5 inches of snow a year

Mundelein, Illinois
Summer High: the July high is around 82 degrees
Winter Low: the January low is 14.2
Rain: averages 36.2 inches of rain a year
Snow: averages 40.6 inches of snow a year

BestPlaces Comfort Index

Sterling

The annual BestPlaces Comfort Index for Sterling is 7.3 (10=best), which means it is about average compared to other places in Virginia.

7.3 / 10

September, June and May are the most pleasant months in Sterling, while January and February are the least comfortable months.

Mundelein

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

6.8 / 10

June, September and August are the most pleasant months in Mundelein, while January and December are the least comfortable months.

Average Monthly High / Low (°F)

Month	Mundelein, IL	Sterling, VA
January	29° / 14°	42° / 24°
February	34° / 18°	46° / 26°
March	44° / 27°	54° / 32°
April	57° / 37°	66° / 42°
May	68° / 47°	73° / 51°
June	78° / 58°	82° / 61°
July	82° / 63°	86° / 66°
August	80° / 62°	85° / 64°
September	73° / 54°	78° / 56°
October	61° / 42°	67° / 44°
November	47° / 31°	57° / 35°
December	33° / 19°	45° / 27°

Hot, Freezing, Rainy, Snowy Days: Mundelein / Sterling

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	29 / 25	10 / 10	8 / 3
February	0 / 0	25 / 22	8 / 9	6 / 3
March	0 / 0	22 / 16	10 / 10	4 / 1
April	0 / 0	8 / 4	11 / 11	1 / 0
May	0 / 1	1 / 0	12 / 12	0 / 0
June	2 / 3	0 / 0	11 / 10	0 / 0
July	4 / 7	0 / 0	9 / 10	0 / 0
August	2 / 6	0 / 0	9 / 9	0 / 0
September	0 / 2	0 / 0	9 / 9	0 / 0
October	0 / 0	4 / 3	10 / 8	0 / 0
November	0 / 0	16 / 12	10 / 9	2 / 0
December	0 / 0	27 / 23	10 / 10	8 / 2

July is the hottest month for Mundelein with an average high temperature of 82.0°, which ranks it as one of the coolest places in Illinois. In Mundelein, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mundelein are June, August and July.

July is the hottest month for Sterling with an average high temperature of 85.8°, which ranks it as cooler than most places in Virginia. In Sterling, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sterling are September, June and May.

January has the coldest nighttime temperatures for Mundelein with an average of 14.2°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Sterling with an average of 23.5°. This is colder than most places in Virginia.

In Mundelein, there are 8.5 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Sterling, there are 19.2 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Mundelein, there are 132.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Sterling, there are 104.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

In Mundelein, there are 9.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Sterling, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

May is the wettest month in Mundelein with 4.0 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 31% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 36.2 inches in Mundelein means that it is one of the driest places in Illinois.

May is the wettest month in Sterling with 4.5 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 27% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 42.0 inches in Sterling means that it is drier than most places in Virginia.

May is the rainiest month in Mundelein with 12.2 days of rain, and February is the driest month with only 8.4 rainy days. There are 120.2 rainy days annually in Mundelein, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

May is the rainiest month in Sterling with 11.9 days of rain, and October is the driest month with only 8.1 rainy days. There are 116.2 rainy days annually in Sterling, which is about average compared to other places in Virginia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 40.6 inches in Mundelein means that it is one of the snowiest places in Illinois.

An annual snowfall of 21.5 inches in Sterling means that it is one of the snowiest places in Virginia.

January is the snowiest month in Mundelein with 12.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Sterling with 7.8 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Mundelein 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

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NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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Reviews for Sterling 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

Start Your Review of Sterling

See all reviews

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2025 Compare Climate & Weather:
Mundelein, IL vs Sterling, VA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Mundelein / Sterling

January has the coldest nighttime temperatures for Mundelein with an average of 14.2°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Sterling with an average of 23.5°. This is colder than most places in Virginia.

In Mundelein, there are 8.5 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Sterling, there are 19.2 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Mundelein, there are 132.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Sterling, there are 104.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

In Mundelein, there are 9.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Sterling, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

An annual snowfall of 40.6 inches in Mundelein means that it is one of the snowiest places in Illinois.

An annual snowfall of 21.5 inches in Sterling means that it is one of the snowiest places in Virginia.

January is the snowiest month in Mundelein with 12.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Sterling with 7.8 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Mundelein 2 Reviews

Reviews for Sterling 2 Reviews

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2025 Compare Climate & Weather:Mundelein, IL vs Sterling, VA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Mundelein / Sterling

January has the coldest nighttime temperatures for Mundelein with an average of 14.2°. This is colder than most places in Illinois.January has the coldest nighttime temperatures for Sterling with an average of 23.5°. This is colder than most places in Virginia.

In Mundelein, there are 8.5 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.In Sterling, there are 19.2 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Mundelein, there are 132.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.In Sterling, there are 104.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

In Mundelein, there are 9.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.In Sterling, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

An annual snowfall of 40.6 inches in Mundelein means that it is one of the snowiest places in Illinois.An annual snowfall of 21.5 inches in Sterling means that it is one of the snowiest places in Virginia.

January is the snowiest month in Mundelein with 12.2 inches of snow, and 6 months of the year have significant snowfall.February is the snowiest month in Sterling with 7.8 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Mundelein 2 Reviews

Reviews for Sterling 2 Reviews

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Zips In Mundelein, Illinois

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2025 Compare Climate & Weather:
Mundelein, IL vs Sterling, VA

January has the coldest nighttime temperatures for Mundelein with an average of 14.2°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Sterling with an average of 23.5°. This is colder than most places in Virginia.

In Mundelein, there are 8.5 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Sterling, there are 19.2 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

In Mundelein, there are 132.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Sterling, there are 104.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

In Mundelein, there are 9.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Sterling, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

An annual snowfall of 40.6 inches in Mundelein means that it is one of the snowiest places in Illinois.

An annual snowfall of 21.5 inches in Sterling means that it is one of the snowiest places in Virginia.

January is the snowiest month in Mundelein with 12.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Sterling with 7.8 inches of snow, and 5 months of the year have significant snowfall.