2025 Compare Climate & Weather:
Aberdeen, WA vs St. Helens, OR

Highlights

On average, there are 141 sunny days per year in St. Helens. Aberdeen averages 127 sunny days per year. The US average is 205 sunny days.

St. Helens, Oregon gets 52.1 inches of rain, on average, per year. Aberdeen, Washington gets 76 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

St. Helens averages 2.1 inches of snow per year. Aberdeen averages 1.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

St. Helens, Oregon
Summer High: the July high is around 78.8 degrees
Winter Low: the January low is 32.9
Rain: averages 52.1 inches of rain a year
Snow: averages 2.1 inches of snow a year

Aberdeen, Washington
Summer High: the July high is around 67 degrees
Winter Low: the January low is 37.6
Rain: averages 76 inches of rain a year
Snow: averages 1.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for St. Helens is 7.1 (10=best), which means it is less comfortable than most places in Oregon.

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

Today's Weather - Aberdeen, WA

53°F

Today's Weather - St. Helens, OR

55°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Aberdeen / St. Helens

August is the hottest month for Aberdeen with an average high temperature of 68.0°, which ranks it as one of the coolest places in Washington. In Aberdeen, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Aberdeen are August, September and July.

August is the hottest month for St. Helens with an average high temperature of 80.1°, which ranks it as cooler than most places in Oregon. In St. Helens, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Helens are July, August and September.

December has the coldest nighttime temperatures for Aberdeen with an average of 36.4°. This is one of the warmest places in Washington.

December has the coldest nighttime temperatures for St. Helens with an average of 32.2°. This is about average compared to other places in Oregon.

In Aberdeen, there are 0.5 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

In St. Helens, there are 9.4 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Aberdeen, there are 27.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.

In St. Helens, there are 58.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.

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

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

November is the wettest month in Aberdeen with 12.6 inches of rain, and the driest month is July with 1.2 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 76.0 inches in Aberdeen means that it is one of the wettest places in Washington.


December is the wettest month in St. Helens with 8.1 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 41% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 52.1 inches in St. Helens means that it is wetter than most places in Oregon.

January is the rainiest month in Aberdeen with 22.1 days of rain, and July is the driest month with only 7.7 rainy days. There are 192.8 rainy days annually in Aberdeen, which is one of the rainiest places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 14% chance of a rainy day.

November is the rainiest month in St. Helens with 20.9 days of rain, and August is the driest month with only 4.6 rainy days. There are 173.4 rainy days annually in St. Helens, which is one of the rainiest places in Oregon. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 1.1 inches in Aberdeen means that it is one of the least snowy places in Washington.

An annual snowfall of 2.1 inches in St. Helens means that it is less snowy than most places in Oregon.

January is the snowiest month in Aberdeen with 0.5 inches of snow, and 1 month of the year have significant snowfall.

February is the snowiest month in St. Helens with 0.9 inches of snow, and 2 months of the year have significant snowfall.