Black Diamond, Washington gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Black Diamond averages 5 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 156 sunny days per year in Black Diamond. The US average is 205 sunny days.
Black Diamond gets some kind of precipitation, on average, 174 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Summer High: the July high is around 76 degrees
Winter Low: the January low is 35
Rain: averages 50 inches of rain a year
Snow: averages 5 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.
7 / 10
August, July and September are the most pleasant months in Black Diamond, while December and January are the least comfortable months.