Walla Walla, Washington gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Walla Walla averages 9 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 188 sunny days per year in Walla Walla. The US average is 205 sunny days.
Walla Walla gets some kind of precipitation, on average, 105 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 89 degrees
Winter Low: the January low is 29
Rain: averages 19 inches of rain a year
Snow: averages 9 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Walla Walla is 7.4 (10=best), which means it is one of the most pleasant places in Washington.
7.4 / 10
September, June and August are the most pleasant months in Walla Walla, while December and January are the least comfortable months.