2025 Compare Climate & Weather:
Portland, OR vs Wisconsin Dells, WI

Highlights

On average, there are 186 sunny days per year in Wisconsin Dells. Portland averages 144 sunny days per year. The US average is 205 sunny days.

Wisconsin Dells, Wisconsin gets 35.8 inches of rain, on average, per year. Portland, Oregon gets 42.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Wisconsin Dells averages 42.4 inches of snow per year. Portland averages 2.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Wisconsin Dells, Wisconsin
Summer High: the July high is around 82.5 degrees
Winter Low: the January low is 7.9
Rain: averages 35.8 inches of rain a year
Snow: averages 42.4 inches of snow a year

Portland, Oregon
Summer High: the July high is around 80.5 degrees
Winter Low: the January low is 36.4
Rain: averages 42.8 inches of rain a year
Snow: averages 2.6 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Portland is 7.5 (10=best), which means it is more comfortable than most places in Oregon.

Today's Weather - Portland, OR

59°F

Today's Weather - Wisconsin Dells, WI

70°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Portland / Wisconsin Dells

August is the hottest month for Portland with an average high temperature of 81.1°, which ranks it as cooler than most places in Oregon. In Portland, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portland are September, July and August.

July is the hottest month for Wisconsin Dells with an average high temperature of 82.5°, which ranks it as warmer than most places in Wisconsin. In Wisconsin Dells, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Wisconsin Dells are June, August and July.

December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.

January has the coldest nighttime temperatures for Wisconsin Dells with an average of 7.9°. This is about average compared to other places in Wisconsin.

In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Wisconsin Dells, there are 7.6 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.

In Portland, there are 29.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Wisconsin Dells, there are 160.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Wisconsin.

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

In Wisconsin Dells, there are 23.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Wisconsin.

December is the wettest month in Portland with 6.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.8 inches in Portland means that it is about average compared to other places in Oregon.


June is the wettest month in Wisconsin Dells with 5.0 inches of rain, and the driest month is January with 1.2 inches. The wettest season is Autumn with 39% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 35.8 inches in Wisconsin Dells means that it is wetter than most places in Wisconsin.

November is the rainiest month in Portland with 19.3 days of rain, and August is the driest month with only 3.7 rainy days. There are 155.9 rainy days annually in Portland, which is rainier than most places in Oregon. 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.

May is the rainiest month in Wisconsin Dells with 11.1 days of rain, and January is the driest month with only 6.1 rainy days. There are 107.2 rainy days annually in Wisconsin Dells, which is less rainy than most places in Wisconsin. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 19% chance of a rainy day.

An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.

An annual snowfall of 42.4 inches in Wisconsin Dells means that it is about average compared to other places in Wisconsin.

December is the snowiest month in Portland with 0.9 inches of snow, and 3 months of the year have significant snowfall.

December is the snowiest month in Wisconsin Dells with 11.1 inches of snow, and 6 months of the year have significant snowfall.