2025 Compare Climate & Weather:
Littleton, MA vs Snohomish, WA

Highlights

On average, there are 159 sunny days per year in Snohomish. Littleton averages 199 sunny days per year. The US average is 205 sunny days.

Snohomish, Washington gets 50.3 inches of rain, on average, per year. Littleton, Massachusetts gets 48.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Snohomish averages 3.6 inches of snow per year. Littleton averages 56.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Littleton, Massachusetts
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 15
Rain: averages 48.5 inches of rain a year
Snow: averages 56.1 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Littleton is 6.8 (10=best), which means it is less comfortable than most places in Massachusetts.

Today's Weather - Littleton, MA

59°F

Today's Weather - Snohomish, WA

48°F

Average Monthly High / Low (°F)

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

July is the hottest month for Littleton with an average high temperature of 83.4°, which ranks it as one of the hottest places in Massachusetts. In Littleton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Littleton are June, September and August.

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.

January has the coldest nighttime temperatures for Littleton with an average of 15.0°. This is colder than most places in Massachusetts.

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

In Littleton, there are 12.4 days annually when the high temperature is over 90°, which is one of the hottest places in Massachusetts.

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

In Littleton, there are 142.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Massachusetts.

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 Littleton, there are 5.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Massachusetts.

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.

March is the wettest month in Littleton with 4.6 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Summer with 26% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 48.5 inches in Littleton means that it is wetter than most places in Massachusetts.


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.

May is the rainiest month in Littleton with 12.5 days of rain, and September is the driest month with only 8.9 rainy days. There are 128.4 rainy days annually in Littleton, which is rainier than most places in Massachusetts. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 24% chance of a rainy day.

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.

An annual snowfall of 56.1 inches in Littleton means that it is one of the snowiest places in Massachusetts.

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

January is the snowiest month in Littleton with 16.9 inches of snow, and 6 months of the year have significant snowfall.

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