West Richland, WA has a warm-summer Mediterranean climate with hot, dry summers and mild winters. Winters are mild with temperatures often ranging from 38 to 60°F while summers can range from 62 to 105°F. Rainfall is spread throughout the year with the wettest months being December through March which sees an average of 3 inches of rain per month. Snowfall is rare but possible during the winter months. The area typically receives about 7 days of measurable snow per year.
West Richland, Washington gets 9 inches of rain, on average, per year. The US average is 38 inches of rain per year.
West Richland averages 4 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 196 sunny days per year in West Richland. The US average is 205 sunny days.
West Richland gets some kind of precipitation, on average, 80 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 88 degrees
Winter Low: the January low is 28
Rain: averages 9 inches of rain a year
Snow: averages 4 inches of snow a year