2025 Compare Climate & Weather:
Lisle, IL vs Davenport, IA

Highlights

On average, there are 203 sunny days per year in Davenport. Lisle averages 191 sunny days per year. The US average is 205 sunny days.

Davenport, Iowa gets 37 inches of rain, on average, per year. Lisle, Illinois gets 38.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Davenport averages 28.3 inches of snow per year. Lisle averages 28.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Davenport, Iowa
Summer High: the July high is around 84.6 degrees
Winter Low: the January low is 14.5
Rain: averages 37 inches of rain a year
Snow: averages 28.3 inches of snow a year

Lisle, Illinois
Summer High: the July high is around 83.8 degrees
Winter Low: the January low is 15.1
Rain: averages 38.6 inches of rain a year
Snow: averages 28.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Davenport is 6.9 (10=best), which means it is more comfortable than most places in Iowa.

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

Today's Weather - Lisle, IL

62°F

Today's Weather - Davenport, IA

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Lisle / Davenport

July is the hottest month for Lisle with an average high temperature of 83.8°, which ranks it as cooler than most places in Illinois. In Lisle, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lisle are June, September and August.

July is the hottest month for Davenport with an average high temperature of 84.6°, which ranks it as warmer than most places in Iowa. In Davenport, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Davenport are September, June and August.

January has the coldest nighttime temperatures for Lisle with an average of 15.1°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Davenport with an average of 14.5°. This is one of the warmest places in Iowa.

In Lisle, there are 8.6 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Davenport, there are 14.6 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.

In Lisle, there are 135.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Davenport, there are 124.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Iowa.

In Lisle, there are 6.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

In Davenport, there are 10.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Iowa.

August is the wettest month in Lisle with 4.2 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 38.6 inches in Lisle means that it is about average compared to other places in Illinois.


June is the wettest month in Davenport with 4.6 inches of rain, and the driest month is January with 1.3 inches. The wettest season is Autumn with 36% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 37.0 inches in Davenport means that it is wetter than most places in Iowa.

May is the rainiest month in Lisle with 11.8 days of rain, and February is the driest month with only 7.9 rainy days. There are 117.9 rainy days annually in Lisle, 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 Davenport with 11.7 days of rain, and September is the driest month with only 8.0 rainy days. There are 115.1 rainy days annually in Davenport, which is one of the rainiest places in Iowa. 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 28.2 inches in Lisle means that it is snowier than most places in Illinois.

An annual snowfall of 28.3 inches in Davenport means that it is less snowy than most places in Iowa.

January is the snowiest month in Lisle with 9.2 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Davenport with 8.2 inches of snow, and 6 months of the year have significant snowfall.