Broomfield weather by month
Average highs run from 46°F in January to 90°F in July, and January nights average 18°F. It gets 15 inches of rain and melted snow a year and 49 inches of snow. Expect about 42 days a year at 90°F or hotter. Nights drop below freezing about 156 times a year. The most comfortable months are May to June and September.
Best time to visit Broomfield
For comfortable weather, go in May to June and September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 47°F | 18°F | 0.5 in | 6.4 in | 2 | 0 | 30 | cold |
| February | 48°F | 19°F | 0.5 in | 7.6 in | 2 | 0 | 26 | cold |
| March | 56°F | 27°F | 1.1 in | 8.8 in | 3 | 0 | 23 | cool |
| April | 63°F | 34°F | 1.7 in | 6.2 in | 4 | 0 | 12 | mild days, chilly nights |
| May | 72°F | 43°F | 2.3 in | 1.4 in | 5 | 1 | 2 | mild |
| June | 84°F | 53°F | 1.7 in | 0.0 in | 4 | 8 | 0 | warm |
| July | 90°F | 59°F | 2.1 in | 0.0 in | 4 | 17 | 0 | hot |
| August | 88°F | 57°F | 1.8 in | 0.0 in | 4 | 13 | 0 | hot |
| September | 80°F | 48°F | 1.5 in | 0.8 in | 3 | 4 | 1 | warm |
| October | 67°F | 36°F | 1.0 in | 3.9 in | 3 | 0 | 9 | mild days, chilly nights |
| November | 55°F | 26°F | 0.7 in | 7.3 in | 2 | 0 | 24 | cool |
| December | 46°F | 18°F | 0.5 in | 6.6 in | 2 | 0 | 30 | cold |
| Year | 66°F avg | 36°F avg | 15.4 in | 49.0 in | 38 | 42 | 156 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Denver-Stapleton, CO (USW00023062), 15.1 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Broomfield
The shortest day is December 21, with 9h 20m of daylight; the longest is June 21, with 15h 00m. The earliest sunset comes around December 4 (4:34 pm) and the latest around June 21 (8:32 pm). The sun sets after 8 pm on 98 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:20 am | 4:59 pm | 9h 39m |
| February | 6:53 am | 5:36 pm | 10h 43m |
| March | 7:11 am | 7:07 pm | 11h 55m |
| April | 6:22 am | 7:38 pm | 13h 16m |
| May | 5:45 am | 8:08 pm | 14h 23m |
| June | 5:31 am | 8:30 pm | 14h 59m |
| July | 5:44 am | 8:27 pm | 14h 43m |
| August | 6:12 am | 7:56 pm | 13h 44m |
| September | 6:41 am | 7:08 pm | 12h 27m |
| October | 7:11 am | 6:20 pm | 11h 09m |
| November | 6:45 am | 4:43 pm | 9h 58m |
| December | 7:15 am | 4:35 pm | 9h 21m |
Calculated for 2026 at the center of Broomfield with NOAA's solar equations, in local clock time (Mountain Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Broomfield getting warmer?
The last 10 years averaged 2.2°F warmer than the 20th century. See the climate stripes for Broomfield.Frequently asked questions
What is the warmest month in Broomfield?
July is the warmest month, with an average high of 90°F and an average low of 59°F (NOAA 1991-2020 normals).
What is the coldest month in Broomfield?
January is the coldest, with average lows of 18°F and highs of 47°F.
What is the rainiest month in Broomfield?
May gets the most precipitation, 2.3 inches on average. January is the driest at 0.5 inches.
Does it snow in Broomfield?
Yes. Broomfield averages 49 inches of snow a year.
When is the best time to visit Broomfield?
For comfortable weather, May to June and September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Broomfield?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Broomfield profile.
Compare the weather: Broomfield vs Thornton, Broomfield vs Westminster, Broomfield vs Arvada, Broomfield vs Denver.