In March, the weather in Churchill Falls is typically freezing. Average daily high temperature in March is about 8 degrees below zero. On average, Churchill Falls has 10 snowy, 9 cloudy, 6 partly cloudy, 5 sunny, and 1 rainy day in March. The snowfalls are usually moderate. March as well as January, February, May, and July is considered the most uncomfortable time to visit Churchill Falls.