The most pleasant months of the year for Cody are September, June and May. In Cody, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Cody with an average high temperature of 88.6°, which ranks it as one of the hottest places in South Dakota. March is the snowiest month in Cody with 9.3 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.