2025 Compare Climate & Weather:
Chicago, IL vs Vancouver, WA

Highlights

On average, there are 143 sunny days per year in Vancouver. Chicago averages 189 sunny days per year. The US average is 205 sunny days.

Vancouver, Washington gets 42.1 inches of rain, on average, per year. Chicago, Illinois gets 38.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Vancouver averages 2.7 inches of snow per year. Chicago averages 35.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Vancouver, Washington
Summer High: the July high is around 79.4 degrees
Winter Low: the January low is 34.4
Rain: averages 42.1 inches of rain a year
Snow: averages 2.7 inches of snow a year

Chicago, Illinois
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 19.2
Rain: averages 38.2 inches of rain a year
Snow: averages 35.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Vancouver is 7.4 (10=best), which means it is one of the most pleasant places in Washington.

The annual BestPlaces Comfort Index for Chicago is 7.0 (10=best), which means it is about average compared to other places in Illinois.

Today's Weather - Chicago, IL

50°F

Today's Weather - Vancouver, WA

68°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Chicago / Vancouver

July is the hottest month for Chicago with an average high temperature of 83.9°, which ranks it as cooler than most places in Illinois. In Chicago, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chicago are June, September and August.

August is the hottest month for Vancouver with an average high temperature of 80.3°, which ranks it as warmer than most places in Washington. In Vancouver, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Vancouver are July, August and September.

January has the coldest nighttime temperatures for Chicago with an average of 19.2°. This is warmer than most places in Illinois.

December has the coldest nighttime temperatures for Vancouver with an average of 33.6°. This is about average compared to other places in Washington.

In Chicago, there are 13.6 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Vancouver, there are 9.9 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Chicago, there are 103.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Vancouver, there are 46.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Chicago, there are 4.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In Vancouver, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

August is the wettest month in Chicago with 4.2 inches of rain, and the driest month is January with 2.0 inches. The wettest season is Autumn with 31% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.2 inches in Chicago means that it is drier than most places in Illinois.


November is the wettest month in Vancouver with 6.6 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 40% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 42.1 inches in Vancouver means that it is about average compared to other places in Washington.

May is the rainiest month in Chicago with 11.5 days of rain, and February is the driest month with only 8.4 rainy days. There are 124.8 rainy days annually in Chicago, which is one of the rainiest places in Illinois. 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.

November is the rainiest month in Vancouver with 20.0 days of rain, and August is the driest month with only 4.0 rainy days. There are 163.9 rainy days annually in Vancouver, which is rainier than most places in Washington. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

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

An annual snowfall of 2.7 inches in Vancouver means that it is less snowy than most places in Washington.

January is the snowiest month in Chicago with 11.0 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Vancouver with 1.1 inches of snow, and 3 months of the year have significant snowfall.