January in Selkirk is the cloudiest and the most freezing month of the year. In January, the weather in Selkirk is typically freezing. Average daily high temperature in January is about 11 degrees below zero. On average, Selkirk has 27 cloudy and 4 snowy days in January. The snowfalls are usually light. January as well as February, April, October, and December is considered the most uncomfortable time to visit Selkirk.