January in Michigan City is the snowiest and the coldest month of the year. In January, the weather in Michigan City is typically freezing. Average daily high temperature in January is about zero. On average, Michigan City has 12 cloudy, 7 partly cloudy, 6 snowy, 3 rainy, and 3 sunny days in January. The snowfalls are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Michigan City.