January in Sosnovka is the cloudiest and the most freezing month of the year. In January, the weather in Sosnovka is typically freezing. Average daily high temperature in January is about 18 degrees below zero. On average, Sosnovka has 29 cloudy and 2 snowy days in January. The snowfalls are usually light. January as well as February, April, and December is considered the most uncomfortable time to visit Sosnovka.