December in Bolshoy Atlym is the snowiest month of the year. In December, the weather in Bolshoy Atlym is typically freezing. Average daily high temperature in December is about 14 degrees below zero. On average, Bolshoy Atlym has 11 cloudy, 10 snowy, 6 partly cloudy, and 4 sunny days in December. The snowfalls are usually light. December as well as January, February, September, and October is considered the most uncomfortable time to visit Bolshoy Atlym.