Jefferson County, Washington gets 27 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jefferson County averages 2 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 159 sunny days per year in Jefferson County. The US average is 205 sunny days.
Jefferson County gets some kind of precipitation, on average, 143 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 73 degrees
Winter Low: the January low is 35
Rain: averages 27 inches of rain a year
Snow: averages 2 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Jefferson County is 7.3 (10=best), which means it is more comfortable than most places in Washington.
7.3 / 10
August, July and September are the most pleasant months in Jefferson County, while December and January are the least comfortable months.