Taking the local weather in Saint-André-d'Argenteuil into account can help you maximise your time at the pool during your trip. The hottest months are usually July and August, with an average temperature of 18°C, while the coldest months are January and February, with an average of -6°C. The snowiest months in Saint-André-d'Argenteuil are January, February, December and March, with each month seeing an average of 60 cm of snowfall.