Weather is probably a major factor when you plan your trip to Sainte-Adele, and keep in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually July and August with an average temp of 62°F, while the coldest months are January and February with an average of 18°F. The snowiest months in Sainte-Adele are January, February, December, and March, with each month seeing an average of 24 inches of snowfall.