Planning for the weather is an important factor for making your trip to Castelrotto a success, especially when you’re splurging. The hottest months are usually July and August with an average temp of 56°F, while the coldest months are January and February with an average of 27°F. The snowiest months in Castelrotto are February, January, March, and December, with each month seeing an average of 137 inches of snowfall.