The climate in 98188 SeaTac, WA is fairly mild and experiences all four distinct seasons throughout the year. Summers tend to be warm and sunny while winters are often chilly but not too cold. Precipitation can be common, especially during the winter months, with an average of 26 inches of rainfall each year. The area also experiences a fair amount of sunshine with about 200 days of sun on average annually.
SeaTac (zip 98188), Washington gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
SeaTac (zip 98188) averages 6 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 140 sunny days per year in SeaTac (zip 98188). The US average is 205 sunny days.
SeaTac (zip 98188) gets some kind of precipitation, on average, 160 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 77 degrees
Winter Low: the January low is 37
Rain: averages 39 inches of rain a year
Snow: averages 6 inches of snow a year