Coupeville, WA has a mild Mediterranean climate characterized by warm and dry summers as well as cool and wet winters. From May to September, the area sees temperatures that rarely reach above 75 degrees Fahrenheit during the day and drop to the low 50s at night. Winters are cold and wet with temperatures usually staying in the 40s during daytime hours. Precipitation is spread out over the year with an average of around 20 inches per year, including both rain and snowfall.
Coupeville, Washington gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Coupeville averages 4 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 161 sunny days per year in Coupeville. The US average is 205 sunny days.
Coupeville gets some kind of precipitation, on average, 138 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 71 degrees
Winter Low: the January low is 37
Rain: averages 20 inches of rain a year
Snow: averages 4 inches of snow a year