March in Cranbrook is the rainiest and the cloudiest month of the year. In March, the weather in Cranbrook is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Cranbrook has 19 rainy, 7 snowy, 3 cloudy, 1 sunny, and 1 partly cloudy day in March. The rains are usually moderate. March as well as April is considered the most uncomfortable time to visit Cranbrook.