If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Minturn: The hottest months are usually July and August with an average temp of 53°F, while the coldest months are January and December with an average of 15°F. The snowiest months in Minturn are March, January, February, and April, with each month seeing an average of 8 inches of snowfall.