The most pleasant months of the year for the 97909 zip code are September, June and May. In the 97909 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 97909 zip code with an average high temperature of 92.4°, which ranks it as one of the hottest places in Oregon. December is the snowiest month in the 97909 zip code with 7.9 inches of snow, and 5 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.