January in Milan is the snowiest, the windiest, the cloudiest, and the most freezing month of the year. In January, the weather in Milan is typically freezing. Average daily high temperature in January is about 1 degree below zero. On average, Milan has 13 cloudy, 11 snowy, 5 rainy, and 2 sunny days in January. The snowfalls are usually moderate. January as well as February, March, April, and December is considered the most uncomfortable time to visit Milan.