January in Birch Run is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Birch Run is typically freezing. Average daily high temperature in January is about zero. On average, Birch Run has 11 cloudy, 9 partly cloudy, 4 rainy, 4 snowy, and 3 sunny days in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Birch Run.