The most pleasant months of the year for Cotopaxi are August, July and June. In Cotopaxi, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Cotopaxi with an average high temperature of 80.1°, which ranks it as cooler than most places in Colorado. March is the snowiest month in Cotopaxi with 13.2 inches of snow, and 8 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.