January weather forecast in Greater Sudbury

January in Greater Sudbury is the most freezing month of the year. In January, the weather in Greater Sudbury is typically freezing. Average daily high temperature in January is about 8 degrees below zero. On average, Greater Sudbury has 18 snowy, 11 cloudy, and 2 sunny days in January. The snowfalls are usually moderate. January as well as February, April, October, and November is considered the most uncomfortable time to visit Greater Sudbury.