2025 Compare Climate & Weather:
Onalaska, WI vs DeForest, WI

Highlights

On average, there are 187 sunny days per year in DeForest. Onalaska averages 193 sunny days per year. The US average is 205 sunny days.

DeForest, Wisconsin gets 34.9 inches of rain, on average, per year. Onalaska, Wisconsin gets 34.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

DeForest averages 43 inches of snow per year. Onalaska averages 41.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

DeForest, Wisconsin
Summer High: the July high is around 82 degrees
Winter Low: the January low is 8.1
Rain: averages 34.9 inches of rain a year
Snow: averages 43 inches of snow a year

Onalaska, Wisconsin
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 8.1
Rain: averages 34.3 inches of rain a year
Snow: averages 41.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for DeForest is 6.6 (10=best), which means it is more comfortable than most places in Wisconsin.

The annual BestPlaces Comfort Index for Onalaska is 6.7 (10=best), which means it is one of the most pleasant places in Wisconsin.

Today's Weather - Onalaska, WI

50°F

Today's Weather - DeForest, WI

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Onalaska / DeForest

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

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

January has the coldest nighttime temperatures for Onalaska with an average of 8.1°. This is about average compared to other places in Wisconsin.

January has the coldest nighttime temperatures for DeForest with an average of 8.1°. This is about average compared to other places in Wisconsin.

In Onalaska, there are 10.1 days annually when the high temperature is over 90°, which is one of the hottest places in Wisconsin.

In DeForest, there are 5.3 days annually when the high temperature is over 90°, which is about average compared to other places in Wisconsin.

In Onalaska, there are 148.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wisconsin.

In DeForest, there are 159.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Wisconsin.

In Onalaska, there are 21.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Wisconsin.

In DeForest, there are 20.4 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Wisconsin.

August is the wettest month in Onalaska with 4.5 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 39% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 34.3 inches in Onalaska means that it is about average compared to other places in Wisconsin.


June is the wettest month in DeForest with 4.7 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 34.9 inches in DeForest means that it is wetter than most places in Wisconsin.

May is the rainiest month in Onalaska with 12.3 days of rain, and February is the driest month with only 7.3 rainy days. There are 113.7 rainy days annually in Onalaska, which is about average compared to other places in Wisconsin. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.

May is the rainiest month in DeForest with 11.5 days of rain, and February is the driest month with only 7.3 rainy days. There are 112.9 rainy days annually in DeForest, which is about average compared to other places in Wisconsin. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.

An annual snowfall of 41.4 inches in Onalaska means that it is less snowy than most places in Wisconsin.

An annual snowfall of 43.0 inches in DeForest means that it is about average compared to other places in Wisconsin.

December is the snowiest month in Onalaska with 12.7 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in DeForest with 12.3 inches of snow, and 6 months of the year have significant snowfall.