South Park's climate varies widely across more than 1,700 square miles of alpine valleys and mountain peaks. The weather can be delightful, with summer days in the 70s and cool, crisp nights. At other times, temperatures can fall well below zero with high winds that foster sudden white-outs. The key to enjoying all the seasons in South Park is to be prepared. Whether summer or winter, protect yourself from too much sun. At our high elevations and clear skies, the sun’s rays are more direct. With over 300 sunny days a year in South Park, wear sunscreen, a hat, and sunglasses for best protection.
The low humidity makes both high and low temperatures more comfortable, especially in the sun. But, since temperatures can fluctuate widely during the course of a day, dress in layers of clothing to stay comfortable at any time. In the summer, afternoon thunderstorms are common, so keep waterproof clothing handy. Snow is possible in every month of the year and generally, the thermometer drops about four degrees for every 1,000 feet above sea level, so if you travel to some of our highest peaks, be prepared to don extra clothing.
If you plan on traveling in the backcountry of South Park during the winter, please visit the Colorado Avalanche Information Center for information on staying safe.