Planning for the weather is an important factor for making your trip to Tre Ville a success, especially when you’re splurging. The hottest months are usually July and August with an average temp of 55°F, while the coldest months are January and February with an average of 25°F. The snowiest months in Tre Ville are March, February, May, and January, with each month seeing an average of 42 inches of snowfall.