March in Grimsi is the snowiest and the coldest month of the year. In March, the weather in Grimsi is typically cold. Average daily high temperature in March is about 2 degrees above zero. On average, Grimsi has 24 rainy, 5 snowy, 1 sunny, and 1 cloudy day in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Grimsi.