Rosalia, WA has a dry continental climate with hot summers and cold winters. The average temperature in summer is around 77掳F and the average temperature in winter is around 34掳F. Precipitation is low throughout the year, at an average of 17 inches annually. There are generally sunny days all year long with occasional storms in spring and fall. Winters can be quite cold at times, but usually don't see much snowfall due to the typically dry conditions.
Rosalia, Washington gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Rosalia averages 30 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 173 sunny days per year in Rosalia. The US average is 205 sunny days.
Rosalia gets some kind of precipitation, on average, 108 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 83 degrees
Winter Low: the January low is 23
Rain: averages 18 inches of rain a year
Snow: averages 30 inches of snow a year