July in Petrovsk-Zabaykalskiy is the rainiest and the warmest month of the year. In July, the weather in Petrovsk-Zabaykalskiy is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Petrovsk-Zabaykalskiy has 12 rainy, 8 sunny, 8 partly cloudy, and 3 cloudy days in July. The rains are usually moderate.