October in Klyuchevskiy is the sunniest month of the year. In October, the weather in Klyuchevskiy is typically freezing. Average daily high temperature in October is about 1 degree above zero. On average, Klyuchevskiy has 16 partly cloudy, 11 sunny, 2 cloudy, 1 rainy, and 1 snowy day in October. The rains are usually moderate.