January weather forecast in Longueuil

January in Longueuil is the windiest and the most freezing month of the year. In January, the weather in Longueuil is typically freezing. Average daily high temperature in January is about 6 degrees below zero. On average, Longueuil has 17 snowy, 12 cloudy, and 2 sunny days in January. The snowfalls are usually moderate.