January in Riviere Du Loup is the most freezing month of the year. In January, the weather in Riviere Du Loup is typically freezing. Average daily high temperature in January is about 8 degrees below zero. On average, Riviere Du Loup has 18 cloudy, 11 snowy, and 2 sunny days in January. The snowfalls are usually light. January as well as April, May, October, and November is considered the most uncomfortable time to visit Riviere Du Loup.