January in Sosnogorsk is the most freezing month of the year. In January, the weather in Sosnogorsk is typically freezing. Average daily high temperature in January is about 14 degrees below zero. On average, Sosnogorsk has 18 cloudy, 12 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, April, May, and September is considered the most uncomfortable time to visit Sosnogorsk.