Planning for the weather is a good way to make your trip to Marilleva relaxing and enjoyable, 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 26°F. The snowiest months in Marilleva are March, February, May, and January, with each month seeing an average of 108 inches of snowfall.