January in Plesetsk is the most freezing month of the year. In January, the weather in Plesetsk is typically freezing. Average daily high temperature in January is about 10 degrees below zero. On average, Plesetsk has 15 snowy, 15 cloudy, and 1 sunny day in January. The snowfalls are usually light. January as well as April, September, and October is considered the most uncomfortable time to visit Plesetsk.