January in Lensk is the windiest and the most freezing month of the year. In January, the weather in Lensk is typically freezing. Average daily high temperature in January is about 24 degrees below zero. On average, Lensk has 26 cloudy, 4 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, March, April, and May is considered the most uncomfortable time to visit Lensk.