July in Ust-Gavrilovka is the rainiest and the warmest month of the year. In July, the weather in Ust-Gavrilovka is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, Ust-Gavrilovka has 14 rainy, 10 partly cloudy, 5 sunny, and 2 cloudy days in July. The rains are usually heavy.