If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Valgrisenche: The hottest months are usually July and August with an average temp of 52°F, while the coldest months are January and February with an average of 21°F. The snowiest months in Valgrisenche are November, August, April, and December, with each month seeing an average of 9 inches of snowfall.