2025 Compare Climate & Weather:
Maple Valley, WA vs Chehalis, WA

Highlights

On average, there are 136 sunny days per year in Chehalis. Maple Valley averages 156 sunny days per year. The US average is 205 sunny days.

Chehalis, Washington gets 51.7 inches of rain, on average, per year. Maple Valley, Washington gets 52.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chehalis averages 2.4 inches of snow per year. Maple Valley averages 6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chehalis, Washington
Summer High: the July high is around 78.4 degrees
Winter Low: the January low is 34.3
Rain: averages 51.7 inches of rain a year
Snow: averages 2.4 inches of snow a year

Maple Valley, Washington
Summer High: the July high is around 75.6 degrees
Winter Low: the January low is 35.1
Rain: averages 52.8 inches of rain a year
Snow: averages 6 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Maple Valley is 7.1 (10=best), which means it is about average compared to other places in Washington.

Today's Weather - Maple Valley, WA

42°F

Today's Weather - Chehalis, WA

39°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Maple Valley / Chehalis

August is the hottest month for Maple Valley with an average high temperature of 76.1°, which ranks it as cooler than most places in Washington. In Maple Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Maple Valley are August, July and September.

August is the hottest month for Chehalis with an average high temperature of 79.5°, which ranks it as warmer than most places in Washington. In Chehalis, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chehalis are July, August and September.

December has the coldest nighttime temperatures for Maple Valley with an average of 33.7°. This is warmer than most places in Washington.

December has the coldest nighttime temperatures for Chehalis with an average of 33.3°. This is about average compared to other places in Washington.

In Maple Valley, there are 3.2 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Chehalis, there are 7.1 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Maple Valley, there are 44.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Chehalis, there are 58.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Maple Valley, 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 Chehalis, 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 Maple Valley with 8.6 inches of rain, and the driest month is July with 1.2 inches. The wettest season is Spring with 36% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 52.8 inches in Maple Valley means that it is wetter than most places in Washington.


November is the wettest month in Chehalis with 8.5 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 39% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 51.7 inches in Chehalis means that it is wetter than most places in Washington.

November is the rainiest month in Maple Valley with 20.4 days of rain, and August is the driest month with only 5.7 rainy days. There are 173.8 rainy days annually in Maple Valley, 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 Chehalis with 20.4 days of rain, and August is the driest month with only 5.1 rainy days. There are 171.0 rainy days annually in Chehalis, which is rainier than most places in Washington. 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 6.0 inches in Maple Valley means that it is about average compared to other places in Washington.

An annual snowfall of 2.4 inches in Chehalis means that it is less snowy than most places in Washington.

December is the snowiest month in Maple Valley with 1.8 inches of snow, and 5 months of the year have significant snowfall.

February is the snowiest month in Chehalis with 0.7 inches of snow, and 3 months of the year have significant snowfall.