March in Schefferville is the snowiest month of the year. In March, the weather in Schefferville is typically freezing. Average daily high temperature in March is about 10 degrees below zero. On average, Schefferville has 10 snowy, 10 cloudy, 6 partly cloudy, and 5 sunny days in March. The snowfalls are usually light. March as well as January, February, July, and August is considered the most uncomfortable time to visit Schefferville.