January in Klyuchevskiy is the most freezing month of the year. In January, the weather in Klyuchevskiy is typically freezing. Average daily high temperature in January is about 21 degrees below zero. On average, Klyuchevskiy has 20 partly cloudy, 9 sunny, and 2 cloudy days in January. January as well as February, May, November, and December is considered the most uncomfortable time to visit Klyuchevskiy.