Understanding the weather in Saint-Joseph-de-la-Rive will help you enjoy your stay to the fullest. The hottest months are usually July and August, with an average temperature of 15°C, while the coldest months are January and February, with an average of -9°C. The snowiest months in Saint-Joseph-de-la-Rive are January, February, March and April, with each month seeing an average of 83 cm of snowfall.