January in Bolshaya Sosnova is the most freezing month of the year. In January, the weather in Bolshaya Sosnova is typically freezing. Average daily high temperature in January is about 12 degrees below zero. On average, Bolshaya Sosnova has 21 cloudy, 9 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, April, September, and October is considered the most uncomfortable time to visit Bolshaya Sosnova.