2025 Compare Climate & Weather:
Dubuque, IA vs Moline, IL

Highlights

On average, there are 204 sunny days per year in Moline. Dubuque averages 194 sunny days per year. The US average is 205 sunny days.

Moline, Illinois gets 37 inches of rain, on average, per year. Dubuque, Iowa gets 36.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Moline averages 28.1 inches of snow per year. Dubuque averages 37.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Moline, Illinois
Summer High: the July high is around 85.2 degrees
Winter Low: the January low is 15
Rain: averages 37 inches of rain a year
Snow: averages 28.1 inches of snow a year

Dubuque, Iowa
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 10.6
Rain: averages 36.4 inches of rain a year
Snow: averages 37.4 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Dubuque is 6.7 (10=best), which means it is less comfortable than most places in Iowa.

Today's Weather - Dubuque, IA

56°F

Today's Weather - Moline, IL

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Dubuque / Moline

July is the hottest month for Dubuque with an average high temperature of 83.4°, which ranks it as cooler than most places in Iowa. In Dubuque, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dubuque are June, August and September.

July is the hottest month for Moline with an average high temperature of 85.2°, which ranks it as about average compared to other places in Illinois. In Moline, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Moline are September, June and August.

January has the coldest nighttime temperatures for Dubuque with an average of 10.6°. This is warmer than most places in Iowa.

January has the coldest nighttime temperatures for Moline with an average of 15.0°. This is colder than most places in Illinois.

In Dubuque, there are 10.8 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.

In Moline, there are 17.3 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Dubuque, there are 140.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

In Moline, there are 120.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Dubuque, there are 16.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Iowa.

In Moline, there are 9.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

June is the wettest month in Dubuque with 4.8 inches of rain, and the driest month is January with 1.2 inches. The wettest season is Autumn with 37% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 36.4 inches in Dubuque means that it is wetter than most places in Iowa.


June is the wettest month in Moline with 4.7 inches of rain, and the driest month is January with 1.4 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 Moline means that it is drier than most places in Illinois.

May is the rainiest month in Dubuque with 12.7 days of rain, and February is the driest month with only 7.6 rainy days. There are 116.1 rainy days annually in Dubuque, which is one of the rainiest places in Iowa. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.

May is the rainiest month in Moline with 11.7 days of rain, and September is the driest month with only 8.0 rainy days. There are 115.0 rainy days annually in Moline, which is rainier than most 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.

An annual snowfall of 37.4 inches in Dubuque means that it is one of the snowiest places in Iowa.

An annual snowfall of 28.1 inches in Moline means that it is snowier than most places in Illinois.

December is the snowiest month in Dubuque with 10.8 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Moline with 8.5 inches of snow, and 6 months of the year have significant snowfall.