March in Billings is the cloudiest month of the year. In March, the weather in Billings is typically cold. Average daily high temperature in March is about 9 degrees above zero. On average, Billings has 10 rainy, 9 cloudy, 7 partly cloudy, and 5 sunny days in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Billings.