How to find the cheapest flights to Boulder on eDreams UK?
eDreams combines different technologies to find the cheapest options to Boulder based on real searches from customers in our platform. Our offers provide a combination of different airlines so you can pick the flight that better suits your needs.
What is the weather usually like in Boulder?
If you're looking for summer vibes, the best time to travel to Boulder is in June, July and August, when the average temperature reaches 26.03 °C, while June, September and July are the 3 sunniest months of the year, with an average of 153.62 hours.
However, if you prefer colder temperatures, make sure you visit Boulder during January, February or December to experience an average of -5.77 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during November, December and July, when the average precipitation in Boulder is 8.65 mm, while the months of January, February and March are drier, with an average of 0 mm.