May in Bur is the rainiest and the windiest month of the year. In May, the weather in Bur is typically cold. Average daily high temperature in May is about 9 degrees above zero. On average, Bur has 13 cloudy, 12 rainy, 3 sunny, and 3 partly cloudy days in May. The rains are usually light. May as well as January, February, April, and September is considered the most uncomfortable time to visit Bur.