The most pleasant months of the year for Ashley are September, May and June. In Ashley, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Ashley with an average high temperature of 86.9°, which ranks it as cooler than most places in Missouri. December is the snowiest month in Ashley with 4.1 inches of snow, and 5 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.