January in Mirnyy is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Mirnyy is typically freezing. Average daily high temperature in January is about 5 degrees below zero. On average, Mirnyy has 18 cloudy, 8 snowy, 3 partly cloudy, and 2 sunny days in January. The snowfalls are usually light.