January in Hay River is the most freezing month of the year. In January, the weather in Hay River is typically freezing. Average daily high temperature in January is about 15 degrees below zero. On average, Hay River has 26 cloudy, 3 snowy, and 2 sunny days in January. The snowfalls are usually light. January as well as February, March, and December is considered the most uncomfortable time to visit Hay River.