The most pleasant months of the year for Coultervillle are October, May and June. In Coultervillle, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Coultervillle with an average high temperature of 91.9°, which ranks it as about average compared to other places in California. February is the snowiest month in Coultervillle with 1.0 inches of snow, and 4 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.