March in Ostrolenskiy is the snowiest and the cloudiest month of the year. In March, the weather in Ostrolenskiy is typically freezing. Average daily high temperature in March is about 2 degrees below zero. On average, Ostrolenskiy has 21 cloudy, 6 snowy, 2 sunny, 1 rainy, and 1 partly cloudy day in March. The snowfalls are usually light.