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McConnells Farmers Market Boulder
12th St Boulder Colorado
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Boulder Weather


Weather in Boulder


If moderate temperatures, an average of 300 sunny days per year and beautiful scenery sound like the perfect vacation destination, then you will love Boulder and its pleasant year-round weather. Boulder Colorado is considered the high-desert, with an altitude of 5,400 above sea level.  This elevation ensures a mild climate with very little humidity in the summer and winter months. The warmest month is July with an average daytime temperature of 87 degrees Fahrenheit.  You may need a sweater at night as temperatures can dip into the 40s.  January is the coldest month in Boulder, with an average daytime high of 45 degrees.  Visitors to the Rocky Mountains dress in layers so they can be ready for all temperatures.

Boulder offers the perfect climate for a variety of outdoor recreation, including hiking and biking.

Current Weather


Climate

Normal average daily temperature: 64.5 degrees F
Warmest month: July
Daily mean temperature: 51.6 degrees F


Average Weather

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average High 45 48 54 62 71 81 87 85 76 66 54 45
Average Low 18 24 28 35 44 52 58 56 48 38 28 21
Mean 34 36 41 48 58 67 74 71 62 54 41 34
Average Precipitation      0.6 in 0.7 in 1.6 in 2.3 in 3.0 in 2.3 in 2.0 in 1.3 in 1.9 in 1.3 in 1.1 in 0.8 in