January in Schefferville is the most freezing month of the year. In January, the weather in Schefferville is typically freezing. Average daily high temperature in January is about 18 degrees below zero. On average, Schefferville has 15 snowy, 15 cloudy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, March, May, and June is considered the most uncomfortable time to visit Schefferville.