2025 Compare Climate & Weather:
Snohomish, WA vs Arlington, WA

Highlights

On average, there are 160 sunny days per year in Arlington. Snohomish averages 159 sunny days per year. The US average is 205 sunny days.

Arlington, Washington gets 41.5 inches of rain, on average, per year. Snohomish, Washington gets 50.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Arlington averages 4.9 inches of snow per year. Snohomish averages 3.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Arlington, Washington
Summer High: the July high is around 73.9 degrees
Winter Low: the January low is 35.2
Rain: averages 41.5 inches of rain a year
Snow: averages 4.9 inches of snow a year

Snohomish, Washington
Summer High: the July high is around 75.6 degrees
Winter Low: the January low is 34.4
Rain: averages 50.3 inches of rain a year
Snow: averages 3.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Arlington is 7.2 (10=best), which means it is more comfortable than most places in Washington.

The annual BestPlaces Comfort Index for Snohomish is 7.2 (10=best), which means it is more comfortable than most places in Washington.

Today's Weather - Snohomish, WA

50°F

Today's Weather - Arlington, WA

49°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Snohomish / Arlington

August is the hottest month for Snohomish with an average high temperature of 76.5°, which ranks it as about average compared to other places in Washington. In Snohomish, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Snohomish are August, July and September.

August is the hottest month for Arlington with an average high temperature of 75.0°, which ranks it as cooler than most places in Washington. In Arlington, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arlington are August, July and September.

December has the coldest nighttime temperatures for Snohomish with an average of 33.2°. This is about average compared to other places in Washington.

December has the coldest nighttime temperatures for Arlington with an average of 33.8°. This is warmer than most places in Washington.

In Snohomish, there are 2.2 days annually when the high temperature is over 90°, which is cooler than most places in Washington.

In Arlington, there are 1.0 days annually when the high temperature is over 90°, which is cooler than most places in Washington.

In Snohomish, there are 49.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Arlington, there are 39.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

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

November is the wettest month in Snohomish with 7.7 inches of rain, and the driest month is July with 1.4 inches. The wettest season is Spring with 34% of yearly precipitation and 11% occurs in Autumn, which is the driest season. The annual rainfall of 50.3 inches in Snohomish means that it is wetter than most places in Washington.


November is the wettest month in Arlington with 6.2 inches of rain, and the driest month is July with 1.2 inches. The wettest season is Spring with 34% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 41.5 inches in Arlington means that it is about average compared to other places in Washington.

November is the rainiest month in Snohomish with 19.9 days of rain, and August is the driest month with only 6.3 rainy days. There are 176.8 rainy days annually in Snohomish, which is rainier than most places in Washington. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 14% chance of a rainy day.

November is the rainiest month in Arlington with 20.0 days of rain, and August is the driest month with only 6.0 rainy days. There are 174.1 rainy days annually in Arlington, which is rainier than most 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.

An annual snowfall of 3.6 inches in Snohomish means that it is less snowy than most places in Washington.

An annual snowfall of 4.9 inches in Arlington means that it is about average compared to other places in Washington.

December is the snowiest month in Snohomish with 1.2 inches of snow, and 4 months of the year have significant snowfall.

December is the snowiest month in Arlington with 1.9 inches of snow, and 5 months of the year have significant snowfall.