Grand Mound, WA is known for its mild climate all year round. The average high temperature during the summer months is around 75 degrees Fahrenheit (24 degrees Celsius) while the average low temperature during winter months is around 45 degrees Fahrenheit (7 degrees Celsius). Rainfall is generally light and distributed evenly throughout the year with most of it falling from October to April. Winters tend to be mild and generally snow free in Grand Mound, with an average of only two inches of precipitation annually. Summers are warm with temperatures rarely rising above 85 degrees Fahrenheit (29 degrees Celsius). Humidity levels tend to be low and there is typically quite a bit of sunshine all year round.
Grand Mound, Washington gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Grand Mound averages 6 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 136 sunny days per year in Grand Mound. The US average is 205 sunny days.
Grand Mound gets some kind of precipitation, on average, 162 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 78 degrees
Winter Low: the January low is 35
Rain: averages 50 inches of rain a year
Snow: averages 6 inches of snow a year