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Fairmount, CO
Full City Profile · Colorado · Broomfield County County
3.8
/5.0
B+
Good
10,521
Population
1,730/sq mi density
$163,785
Median Income
$74,059 per capita
$772,600
Home Value
$608,988 Zillow
$2,505
Median Rent
29.2% income on rent
50°F
Avg Temperature
330 sunny days/yr
150
Violent Crime/100K
2,354 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$163,785 median income, 1.2% unemployment
A
Affordability
4.0 / 5.0
$772,600 home value, $2,505/mo rent
F
Safety
1.0 / 5.0
150 violent crimes/100K
A+
Education
5.0 / 5.0
61.6% bachelor's degree or higher
Fairmount experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 32°F in January while summers reach 73°F in July. The area gets 330 sunny days per year. Annual precipitation totals 17.1 inches. The area receives 75.5 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
32°F Jan (0°C)
73°F Jul (23°C)
| Annual Average | 50.3°F |
| 7% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 5,589 ft (1,704 m) |
| Area | 6.2 sq mi (16.0 km²) |
| Population Density | 1,730/sq mi |
| Coordinates | 39.7926°N, 105.1712°W |
| Timezone | America/Denver |
| County | Broomfield County County |
| Nearest Airport | Denver International (DEN) 27 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 34.7 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 81.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 0.6 in | Driest |
| February | 31°F (-1°C) | 0.8 in | |
| March | 36°F (2°C) | 1.6 in | |
| April | 42°F (6°C) | 2.1 in | |
| May | 52°F (11°C) | 2.6 in | Wettest |
| June | 61°F (16°C) | 2.0 in | |
| July | 73°F (23°C) | 2.2 in | Warmest |
| August | 66°F (19°C) | 2.0 in | |
| September | 58°F (14°C) | 1.5 in | |
| October | 47°F (8°C) | 1.3 in | |
| November | 36°F (2°C) | 1.1 in | |
| December | 30°F (-1°C) | 0.8 in | Coldest |
Fairmount has a seasonal temperature swing of 43°F / from 30°F in December to 73°F in July. Total annual precipitation is 18.5 inches, with May being the wettest month (2.6") and January the driest (0.6").