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The Best Time to Visit Boulder, Colorado?

The best time to visit Boulder is arguably spring or fall, when the temperatures are in the 60s and 70s Fahrenheit (16 to 23 Celsius) and there are plenty of festivals and events happening throughout town. But rest assured, Boulder has a climate that's mild year-round and, as a lively college town, there's almost always something fun happening. Need a little help trying to time your visit? We've listed the pros and cons of each season below.

Also see our Boulder weather page for average temps, how to dress and current weather.

  • Pros: Thousands of tulips bloom all along Pearl Street's flower beds, greenery starts to flourish along trails and mountainsides, and temperatures are usually very pleasant.
  • Cons: Boulder can occasionally get a large snowfall as late as May.
  • Pros: There are many outdoor events, concerts and festivals in town, trees and plants are in their full glory and there's an energetic buzz to the city.
  • Cons: While there's no humidity to speak of, it can get up to 100°F (37°C) during the day under the high-altitude sun, and the city is at its busiest. 
  • Pros: The foliage around town is stunning, and the temperatures are usually just right. Students return to the University of Colorado (as does football), so there is a fresh energy in town.
  • Cons: We can get some snow as early as late September.
  • Pros: There's a peaceful, easy feeling that comes over the town, the Flatirons are frequently dusted in snow, and warm, sunny days are not uncommon in winter. Hotel prices are at their lowest. The holidays are also special, with fun traditions, lights and amazing shopping.
  • Cons: Landscapes are a little brown when they're not snow-dusted, and there aren't as many major events as in other seasons.

A Photo Guide to Boulder's Seasons