Walla Walla, WA has a moderate climate with mild winters and hot summers. The average summer temperature is 78 degrees Fahrenheit, while the average winter temperature is 43 degrees Fahrenheit. The city experiences low humidity year-round, making it an ideal destination for people seeking an escape from the heat of larger cities. Precipitation in Walla Walla typically occurs throughout the year, although winters tend to be the rainier season. Snowfall is rare and usually occurs just once or twice a winter. In general, Walla Walla enjoys plenty of warm sunshine throughout the year, perfect for outdoor activities like hiking, biking, and camping.
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.
Weather Highlights
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