Broomfield (CO) Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to chilly in Broomfield. Average maximum daytime temperatures range from a very warm 32°C (90°F) in July, the warmest time of the year, to a chilly 7°C (45°F) during cooler months like December.

At night, you can expect temperatures ranging from 15°C (59°F) in July to around -8°C (18°F) during December.

Check out our detailed temperature page for more information.

Temperature ranges by month

With annual rain/snowfall averaging 420 mm (17 in), Broomfield maintains relatively low precipitation levels throughout the seasons. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, May it receives moderate rainfall, averaging 69 mm (2.7 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month January brings less snow/rainfall, with 12 mm (0.5 in) over 5 snowy/rainy days. For more details, please visit our Broomfield Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Broomfield. While July receives considerable daily sunshine with up to 10.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 6.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Broomfield.

The city experiences its highest humidity in December, reaching 56%. In July, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year