April in Bolshoy Nimnyr is the windiest month of the year. In April, the weather in Bolshoy Nimnyr is typically freezing. Average daily high temperature in April is about 4 degrees below zero. On average, Bolshoy Nimnyr has 24 snowy, 3 rainy, 2 cloudy, and 1 sunny day in April. The snowfalls are usually moderate.