CO
Thornton sees rain or snow on roughly 25 fewer days each year.
Broomfield picks up around 16 more inches of snow each winter.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Broomfield | Metric | Thornton |
|---|---|---|
| 266 days | Sunny daysclear or partly cloudy skies | 266 days |
| 20 in | Precipitationper year | 15 in |
| 97 days | Wet daysrain or snow per year | 72 days |
| 67 in | Snowfallper year | 51 in |
| 50 days | Hot daysabove 90 °F | 50 days |
| 147 days | Freezing nightsat or below 32 °F | 152 days |
| 59% | Humidityaverage relative | 54% |
| 52 °F | Average temperatureyear round | 52 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Broomfield high | 47 | 49 | 57 | 64 | 72 | 85 | 91 | 89 | 81 | 67 | 55 | 47 |
| Thornton high | 47 | 48 | 57 | 64 | 72 | 85 | 91 | 88 | 81 | 67 | 55 | 46 |
| Broomfield low | 19 | 20 | 28 | 35 | 44 | 53 | 59 | 57 | 49 | 37 | 27 | 19 |
| Thornton low | 18 | 20 | 28 | 35 | 44 | 53 | 59 | 57 | 48 | 36 | 26 | 18 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Broomfield | 0.8 | 0.8 | 1.7 | 2.7 | 3.3 | 2.1 | 1.7 | 1.6 | 1.5 | 1.6 | 1.1 | 0.8 |
| Thornton | 0.6 | 0.6 | 1.3 | 2.0 | 2.5 | 1.6 | 1.3 | 1.2 | 1.2 | 1.2 | 0.8 | 0.6 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Broomfield | 23 | 19 | 21 | 18 | 20 | 24 | 24 | 24 | 24 | 23 | 23 | 23 |
| Thornton | 23 | 19 | 21 | 18 | 20 | 24 | 24 | 24 | 24 | 23 | 23 | 23 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Broomfield vs another city
- Broomfield vs Lafayette, CO
- Broomfield vs Northglenn, CO
- Broomfield vs Louisville, CO
- Broomfield vs Westminster, CO
- Broomfield vs Superior, CO
- Broomfield vs Erie, CO
- Broomfield vs New York, NY
- Broomfield vs Los Angeles, CA
- Broomfield vs Chicago, IL
- Broomfield vs Houston, TX
- Broomfield vs Phoenix, AZ
- Broomfield vs Philadelphia, PA
Thornton vs another city
- Thornton vs Northglenn, CO
- Thornton vs Federal Heights, CO
- Thornton vs Todd Creek, CO
- Thornton vs Derby, CO
- Thornton vs Welby, CO
- Thornton vs New York, NY
- Thornton vs Los Angeles, CA
- Thornton vs Chicago, IL
- Thornton vs Houston, TX
- Thornton vs Phoenix, AZ
- Thornton vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).