The Boulder, CO Metro Area has a semi-arid climate characterized by warm and sunny days with low humidity. The area gets an average of 300 days of sunshine each year, making it one of the most sunny places in the United States. Summers can be quite hot, while winters tend to be mild with occasional snowfall. Average temperatures range from 45°F in January to 75°F in July. The region receives an average annual precipitation of 16 inches, mostly as scattered thunderstorms during the spring and summer months. Winters are very dry with very little snowfall or rain.
Boulder Metro Area, Colorado gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Boulder Metro Area averages 82 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 246 sunny days per year in Boulder Metro Area. The US average is 205 sunny days.
Boulder Metro Area gets some kind of precipitation, on average, 94 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 85 degrees
Winter Low: the January low is 16
Rain: averages 18 inches of rain a year
Snow: averages 82 inches of snow a year