December weather forecast in Ust'-Yansk

December in Ust'-Yansk is the sunniest month of the year. In December, the weather in Ust'-Yansk is typically freezing. Average daily high temperature in December is about 27 degrees below zero. On average, Ust'-Yansk has 18 partly cloudy, 10 sunny, 2 cloudy, and 1 snowy day in December. The snowfalls are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Ust'-Yansk.