The most pleasant months of the year for Cass are August, July and June. In Cass, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Cass with an average high temperature of 78.8°, which ranks it as one of the coolest places in West Virginia. January is the snowiest month in Cass with 18.6 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.