2025 Compare Climate & Weather:
Snoqualmie, WA vs Black Diamond, WA

Highlights

On average, there are 156 sunny days per year in Black Diamond. Snoqualmie averages 151 sunny days per year. The US average is 205 sunny days.

Black Diamond, Washington gets 50 inches of rain, on average, per year. Snoqualmie, Washington gets 54 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Black Diamond averages 4.7 inches of snow per year. Snoqualmie averages 6.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Black Diamond, Washington
Summer High: the July high is around 75.7 degrees
Winter Low: the January low is 34.7
Rain: averages 50 inches of rain a year
Snow: averages 4.7 inches of snow a year

Snoqualmie, Washington
Summer High: the July high is around 75.5 degrees
Winter Low: the January low is 35.2
Rain: averages 54 inches of rain a year
Snow: averages 6.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Black Diamond is 7.0 (10=best), which means it is less comfortable than most places in Washington.

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

Today's Weather - Snoqualmie, WA

48°F

Today's Weather - Black Diamond, WA

47°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Snoqualmie / Black Diamond

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

August is the hottest month for Black Diamond with an average high temperature of 76.4°, which ranks it as cooler than most places in Washington. In Black Diamond, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Black Diamond are August, July and September.

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

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

In Snoqualmie, there are 3.1 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Black Diamond, there are 3.3 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Snoqualmie, there are 44.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Black Diamond, there are 49.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Snoqualmie, 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 Black Diamond, 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 Snoqualmie with 8.8 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 54.0 inches in Snoqualmie means that it is wetter than most places in Washington.


November is the wettest month in Black Diamond with 7.9 inches of rain, and the driest month is July with 1.3 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 50.0 inches in Black Diamond means that it is wetter than most places in Washington.

November is the rainiest month in Snoqualmie with 20.6 days of rain, and August is the driest month with only 5.8 rainy days. There are 175.4 rainy days annually in Snoqualmie, 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 Black Diamond with 20.3 days of rain, and August is the driest month with only 5.8 rainy days. There are 173.6 rainy days annually in Black Diamond, 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 6.3 inches in Snoqualmie means that it is about average compared to other places in Washington.

An annual snowfall of 4.7 inches in Black Diamond means that it is about average compared to other places in Washington.

December is the snowiest month in Snoqualmie with 2.0 inches of snow, and 5 months of the year have significant snowfall.

November is the snowiest month in Black Diamond with 1.4 inches of snow, and 4 months of the year have significant snowfall.