Planning for the weather is a good way to make your trip to Sevrier relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 64°F, while the coldest months are January and February with an average of 37°F. The snowiest months in Sevrier are October, September, May, and December, with each month seeing an average of 5 inches of snowfall.