December in Smolenskiy is the windiest month of the year. In December, the weather in Smolenskiy is typically freezing. Average daily high temperature in December is about 12 degrees below zero. On average, Smolenskiy has 18 snowy, 12 cloudy, and 1 sunny day in December. The snowfalls are usually light. December as well as January, February, April, and October is considered the most uncomfortable time to visit Smolenskiy.