January in Bloomington is the snowiest and the coldest month of the year. In January, the weather in Bloomington is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Bloomington has 12 cloudy, 5 rainy, 5 sunny, 5 partly cloudy, and 4 snowy days in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Bloomington.