Taking the local weather in Lac-Despinassy 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 16°C, while the coldest months are January and February, with an average of -11°C. The snowiest months in Lac-Despinassy are January, November, February and March, with each month seeing an average of 33 cm of snowfall.