All Countries
Nunn, CO
Full City Profile · Colorado · Weld County County
3.0
/5.0
B
Good
427
Population
107/sq mi density
$86,875
Median Income
$39,898 per capita
$311,000
Home Value
$595,257 Zillow
47°F
Avg Temperature
316 sunny days/yr
189
Violent Crime/100K
63 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$86,875 median income, 2.2% unemployment
A+
Affordability
4.7 / 5.0
$311,000 home value, /mo rent
F
Safety
1.0 / 5.0
189 violent crimes/100K
D
Education
1.6 / 5.0
7.5% bachelor's degree or higher
Nunn experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 28°F in January while summers reach 71°F in July. The area gets 316 sunny days per year. Annual precipitation totals 13.4 inches. Air quality is rated Good with a median AQI of 41.
Temperature
28°F Jan (-2°C)
71°F Jul (21°C)
| Annual Average | 47.3°F |
| 12% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 5,214 ft (1,589 m) |
| Area | 3.1 sq mi (8.0 km²) |
| Population Density | 107/sq mi |
| Coordinates | 40.7137°N, 104.7888°W |
| Timezone | America/Denver |
| County | Weld County County |
| Nearest Airport | Northern Colorado Regional (FNL) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0491 ppm |
| NO₂ (Nitrogen Dioxide) | 11.5 ppb |
| CO (Carbon Monoxide) | 0.20 ppm |
| PM2.5 (Fine Particles) | 7.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 89.2 / 100 |
| Social Vulnerability | 11.4 / 100 |
| Community Resilience | 56.2 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 0.4 in | Coldest |
| February | 33°F (0°C) | 0.3 in | Driest |
| March | 38°F (4°C) | 1.1 in | |
| April | 46°F (8°C) | 1.5 in | |
| May | 56°F (13°C) | 2.5 in | Wettest |
| June | 66°F (19°C) | 2.1 in | |
| July | 71°F (21°C) | 2.0 in | Warmest |
| August | 70°F (21°C) | 1.5 in | |
| September | 61°F (16°C) | 1.3 in | |
| October | 49°F (10°C) | 0.8 in | |
| November | 36°F (2°C) | 0.6 in | |
| December | 29°F (-2°C) | 0.4 in |
Nunn has a seasonal temperature swing of 43°F / from 28°F in January to 71°F in July. Total annual precipitation is 14.5 inches, with May being the wettest month (2.5") and February the driest (0.3").