2025 Compare Climate & Weather:
Oak Brook, IL vs Nederland, CO

Highlights

On average, there are 242 sunny days per year in Nederland. Oak Brook averages 188 sunny days per year. The US average is 205 sunny days.

Nederland, Colorado gets 18.5 inches of rain, on average, per year. Oak Brook, Illinois gets 38.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Nederland averages 118.3 inches of snow per year. Oak Brook averages 31.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Nederland, Colorado
Summer High: the July high is around 77 degrees
Winter Low: the January low is 10.5
Rain: averages 18.5 inches of rain a year
Snow: averages 118.3 inches of snow a year

Oak Brook, Illinois
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 15.3
Rain: averages 38.7 inches of rain a year
Snow: averages 31.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Nederland is 6.0 (10=best), which means it is less comfortable than most places in Colorado.

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

Today's Weather - Oak Brook, IL

50°F

Today's Weather - Nederland, CO

37°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Oak Brook / Nederland

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

July is the hottest month for Nederland with an average high temperature of 77.0°, which ranks it as cooler than most places in Colorado. In Nederland, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Nederland are July, August and June.

January has the coldest nighttime temperatures for Oak Brook with an average of 15.3°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Nederland with an average of 10.5°. This is colder than most places in Colorado.

In Oak Brook, there are 9.2 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Nederland, there are 0.4 days annually when the high temperature is over 90°, which is cooler than most places in Colorado.

In Oak Brook, there are 135.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Nederland, there are 215.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Colorado.

In Oak Brook, there are 5.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

In Nederland, there are 20.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.

August is the wettest month in Oak Brook with 4.3 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 38.7 inches in Oak Brook means that it is about average compared to other places in Illinois.


April is the wettest month in Nederland with 2.1 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Summer with 31% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 18.5 inches in Nederland means that it is wetter than most places in Colorado.

May is the rainiest month in Oak Brook with 11.8 days of rain, and February is the driest month with only 8.2 rainy days. There are 120.5 rainy days annually in Oak Brook, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

August is the rainiest month in Nederland with 12.6 days of rain, and October is the driest month with only 7.0 rainy days. There are 111.2 rainy days annually in Nederland, which is one of the rainiest places in Colorado. The rainiest season is Autumn when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 31.1 inches in Oak Brook means that it is snowier than most places in Illinois.

An annual snowfall of 118.3 inches in Nederland means that it is snowier than most places in Colorado.

January is the snowiest month in Oak Brook with 10.2 inches of snow, and 6 months of the year have significant snowfall.

March is the snowiest month in Nederland with 21.9 inches of snow, and 9 months of the year have significant snowfall.