December in Bolshiye Mordovskiye Poshaty is the snowiest and the windiest month of the year. In December, the weather in Bolshiye Mordovskiye Poshaty is typically freezing. Average daily high temperature in December is about 4 degrees below zero. On average, Bolshiye Mordovskiye Poshaty has 19 snowy, 11 cloudy, and 1 sunny day in December. The snowfalls are usually moderate.