April in Zheleznogorsk is the rainiest and the windiest month of the year. In April, the weather in Zheleznogorsk is typically cold. Average daily high temperature in April is about 7 degrees above zero. On average, Zheleznogorsk has 19 rainy, 7 cloudy, 3 sunny, and 1 partly cloudy day in April. The rains are usually light. April as well as January, February, May, and October is considered the most uncomfortable time to visit Zheleznogorsk.