Though it boasts 300 days of sunshine and more than 300 inches of snow in the mountains per year, Colorado's weather is varied and can be unpredictable. The summer attracts those who want to explore the state's many lakes, rivers, and national parks by hiking, camping, or even whitewater rafting. Fall brings the changing of the aspen trees from a lush green to a majestic gold. The winter climate offers skiers a chance to experience thick powdery snow on a sunny day at one of the many mountain resorts.

high season: January to March, June to September
shoulder season: April to May, October to December

Weather Information

The weather changes quickly throughout the year due to the state's location and varied terrain. However, temperatures rarely rise above 90 degrees in the summer or fall much below freezing in the winter. Greater snow accumulation in the mountains creates ideal conditions for skiing, while the valleys stay fairly mild and temperate. Summer months consist of clear skies interspersed with light rain.

Crowd Information

With an annual visitation rate of more than 11.5 million during the winter season alone, ski resorts and slopes can be overcrowded. To avoid the crowds, try traveling between Thanksgiving and Christmas, or March through early April when things start to slow down. Although the summer attracts even greater numbers of visitors, it's less likely to feel crowded since warm weather activities are more spread out. During the low season, or what is referred to in the mountains as "mud season," tourists nearly vanish.

Closure Information

There are no significant annual closures.

When to Save

During the summer months, many mountain resorts offer incentive packages. They usually include round-trip airfare, rental car, lodging, and a variety of outdoor activities such as horseback riding, bike tours, and whitewater rafting. Prices are typically lower during the low season.

When to Book

With twenty-three commercial airlines providing regular service to ten Colorado cities, keeping an eye on discounts and deals throughout the year can be very beneficial.

Information provided by the Colorado Tourism Office