June in Churchill Falls is the sunniest month of the year. In June, the weather in Churchill Falls is typically warm. Average daily high temperature in June is about 14 degrees above zero. On average, Churchill Falls has 16 rainy, 9 cloudy, 4 sunny, and 1 partly cloudy day in June. The rains are usually moderate. June as well as January, February, March, and May is considered the most uncomfortable time to visit Churchill Falls.