99003 Chattaroy, WA has a warm-summer Mediterranean climate with cool and rainy winters. Summers are usually dry and warm, while winters generally bring cooler temperatures and more rain. Average highs are in the mid 70s during the summer months and average lows in the 30s during winter. Precipitation is fairly evenly distributed throughout the year with an average of about 31 inches annually. Snowfall is rare but can occur occasionally in higher elevations.
Chattaroy (zip 99003), Washington gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chattaroy (zip 99003) averages 43 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 174 sunny days per year in Chattaroy (zip 99003). The US average is 205 sunny days.
Chattaroy (zip 99003) gets some kind of precipitation, on average, 112 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 84 degrees
Winter Low: the January low is 23
Rain: averages 22 inches of rain a year
Snow: averages 43 inches of snow a year