Taking into account the local weather in Copper Mountain is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 49°F, while the coldest months are January and December with an average of 13°F. The snowiest months in Copper Mountain are March, February, January, and December, with each month seeing an average of 32 inches of snowfall.