The most pleasant months of the year for the 97406 zip code are June, September and May. In the 97406 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 97406 zip code with an average high temperature of 87.2°, which ranks it as warmer than most places in Oregon. February is the snowiest month in the 97406 zip code with 1.1 inches of snow, and 4 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.