The climate in 99402 Asotin, WA is a humid continental climate. Summers are generally warm and humid, with occasional thunderstorms in the afternoons and evenings. Winters tend to be cold and wet, with temperatures occasionally dropping below freezing. Precipitation is abundant throughout the year, but rainfall is most frequent during the winter months. The area receives an average of 36 inches of rain per year, mostly from October until April. Snowfall is moderate, usually totaling around 10 inches for the season. Temperatures can range from highs in the 80's during summer months to lows in the teens during winter months.
Asotin (zip 99402), Washington gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Asotin (zip 99402) averages 20 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 169 sunny days per year in Asotin (zip 99402). The US average is 205 sunny days.
Asotin (zip 99402) gets some kind of precipitation, on average, 107 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 86 degrees
Winter Low: the January low is 27
Rain: averages 16 inches of rain a year
Snow: averages 20 inches of snow a year