April in Petrovka is the rainiest month of the year. In April, the weather in Petrovka is typically cold. Average daily high temperature in April is about 5 degrees above zero. On average, Petrovka has 19 rainy, 10 cloudy, and 1 sunny day in April. The rains are usually moderate. April as well as January, February, May, and September is considered the most uncomfortable time to visit Petrovka.