Average humidity in Boulder (CO)

On this page you find more information about the monthly relative humidity over the year in Boulder (Colorado), the United States of America.

Boulder's humidity levels vary throughout the year. The highest levels occur in December, reaching 56% (moderate), while the lowest is recorded in July at 46%.

Throughout the year, the average humidity in Boulder is 51%.

Humidity plays an important role in how temperatures are felt. During the warmest month, July, the maximum average temperature is around 31°C (88°F). During this warm period, the moderate humidity levels have little impact on how the temperature is perceived.

During the coldest month, December, the maximum average temperature is around 7°C (45°F). This period has moderate humidity. Check out our detailed temperature page for more information.