The most pleasant months of the year for Conway are August, July and September. In Conway, there are 2 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Conway with an average high temperature of 72.5°, which ranks it as cooler than most places in Washington. December is the snowiest month in Conway 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.