Broomfield (CO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Broomfield.
Climate overview of Broomfield
Broomfield, Colorado, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 32°C (90°F) in July, while winters cool to 7°C (45°F) in December.
Rain/snowfall is modest, totalling around 420 mm (17 in) annually. The city experiences a distinct dry season from August to March, with very warm summers and cold winters. May tends to be the wettest month. The sunniest month is July, with 10.8 hours of sunshine per day on average.
Broomfield Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Broomfield - and find the best time to visit.
Monthly Temperature in Broomfield
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
Rainfall in Broomfield
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
Sunshine Hours in Broomfield
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
Humidity in Broomfield by Month
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
Best Time to Visit Broomfield
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewer rainy days: January, February, March, November and December
- Seasonal pattern: A distinct dry season from August to March, with very warm summers and cold winters
- Coldest conditions: December, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Broomfield
What is the best time to visit Broomfield?
May, June and September typically offer the most optimal weather in Broomfield. In contrast, January, February and December tend to have less optimal conditions. Broomfield has a distinct dry season from August to March, with very warm summers and cold winters.
What temperatures can I expect in Broomfield?
Daytime highs range from 7°C (45°F) in December to 32°C (90°F) in July. Nighttime lows range from -8°C (18°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Broomfield get?
Annual rainfall is around 420 mm (17 in). May is the wettest month with 69 mm (2.7 in), while January is the driest with 12 mm (0.5 in).
How sunny is Broomfield?
Broomfield receives around 3,102 hours of sunshine per year. July is the sunniest month with 323 hours, while November is the cloudiest with just 195 hours. Overall, Broomfield enjoys abundant sunshine.
Broomfield 3-Day Forecast
Broomfield (CO) 3-Day Forecast
Broomfield on the map
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