The most pleasant months of the year for Creston are October, May and June. In Creston, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Creston with an average high temperature of 88.5°, which ranks it as about average compared to other places in California. December is the snowiest month in Creston with 0.1 inches of snow, and no months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.