January in Matsumoto is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Matsumoto is typically freezing. Average daily high temperature in January is about 3 degrees below zero. On average, Matsumoto has 19 snowy, 6 partly cloudy, 4 cloudy, and 2 sunny days in January. The snowfalls are usually heavy.