December in Sainte-Genevieve-des-Bois is the windiest month of the year. In December, the weather in Sainte-Genevieve-des-Bois is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Sainte-Genevieve-des-Bois has 16 rainy, 8 cloudy, 4 sunny, and 3 partly cloudy days in December. The rains are usually moderate. December as well as January, February, March, and May is considered the most uncomfortable time to visit Sainte-Genevieve-des-Bois.