December in Nemiscau is the snowiest month of the year. In December, the weather in Nemiscau is typically freezing. Average daily high temperature in December is about 10 degrees below zero. On average, Nemiscau has 23 snowy and 8 cloudy days in December. The snowfalls are usually moderate. December as well as January, February, April, and May is considered the most uncomfortable time to visit Nemiscau.