January in Mont Tremblant is the most freezing month of the year. In January, the weather in Mont Tremblant is typically freezing. Average daily high temperature in January is about 9 degrees below zero. On average, Mont Tremblant has 18 snowy, 11 cloudy, and 2 sunny days in January. The snowfalls are usually moderate. January as well as February, April, May, and October is considered the most uncomfortable time to visit Mont Tremblant.