December in Osinovka is the windiest month of the year. In December, the weather in Osinovka is typically freezing. Average daily high temperature in December is about 12 degrees below zero. On average, Osinovka has 21 snowy, 8 cloudy, and 2 sunny days in December. The snowfalls are usually light. December as well as January, February, April, and October is considered the most uncomfortable time to visit Osinovka.