April in Zheleznogorsk is the windiest month of the year. In April, the weather in Zheleznogorsk is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Zheleznogorsk has 10 partly cloudy, 9 cloudy, 6 rainy, 4 sunny, and 1 snowy day in April. The rains are usually light.