2025 Compare Climate & Weather:
Portland, OR vs Dakota Dunes, SD

Highlights

On average, there are 205 sunny days per year in Dakota Dunes. Portland averages 144 sunny days per year. The US average is 20210924 sunny days.

Dakota Dunes, South Dakota gets 38.1 inches of rain, on average, per year. Portland, Oregon gets 42.8 inches of rain, on average, per year. The US average is 20210924 inches of rain per year.

Dakota Dunes averages 27.8 inches of snow per year. Portland averages 2.6 inches of snow per year. The US average is 20210924 inches of snow per year.

Weather Highlights

Dakota Dunes, South Dakota
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 21.7
Rain: averages 38.1 inches of rain a year
Snow: averages 27.8 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 Dakota Dunes is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

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

51°F

Today's Weather - Dakota Dunes, SD

40°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Portland / Dakota Dunes

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 Dakota Dunes with an average high temperature of 85.4°, which ranks it as about average compared to other places in South Dakota. In Dakota Dunes, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dakota Dunes are September, June and May.

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 Dakota Dunes with an average of 9.7°. This is warmer than most places in South Dakota.

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

In Dakota Dunes, there are 20.0 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

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 Dakota Dunes, there are 154.2 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Dakota.

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 Dakota Dunes, there are 19.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

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 Dakota Dunes with 4.1 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 37% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 29.5 inches in Dakota Dunes means that it is one of the wettest places in South Dakota.

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 Dakota Dunes with 10.3 days of rain, and February is the driest month with only 4.1 rainy days. There are 83.7 rainy days annually in Dakota Dunes, which is rainier than most places in South Dakota. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 16% 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 32.3 inches in Dakota Dunes means that it is one of the least snowy places in South Dakota.

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 Dakota Dunes with 7.3 inches of snow, and 6 months of the year have significant snowfall.