The most pleasant months of the year for the 98238 zip code are August, July and September. In the 98238 zip code, there are 2 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 98238 zip code with an average high temperature of 72.4°, which ranks it as cooler than most places in Washington. December is the snowiest month in the 98238 zip code with 2.3 inches of snow, and 5 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.