Tres Arroyos, NM
Full City Profile · New Mexico · Los Alamos County County
3.9
/5.0
B+
Good
1,870
Population
203/sq mi density
$88,289
Median Income
$78,754 per capita
$702,100
Home Value
$570,822 Zillow
52°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$88,289 median income, 2.9% unemployment
C
Affordability
2.2 / 5.0
$702,100 home value, /mo rent
A+
Education
5.0 / 5.0
62.8% bachelor's degree or higher
Tres Arroyos experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°F in January while summers reach 73°F in July. Annual precipitation totals 10.7 inches. The area receives 20.2 inches of snow annually.
Temperature
32°F Jan (0°C)
73°F Jul (23°C)
| Annual Average | 52.0°F |
| 4% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 6,584 ft (2,007 m) |
| Area | 9.2 sq mi (23.9 km²) |
| Population Density | 203/sq mi |
| Coordinates | 35.6798°N, 106.0399°W |
| Timezone | America/Denver |
| County | Los Alamos County County |
| Nearest Airport | Santa Fe Regional (SAF) 6 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 3.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 99.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | No Rating |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 0.5 in | |
| February | 36°F (2°C) | 0.4 in | Driest |
| March | 43°F (6°C) | 0.7 in | |
| April | 50°F (10°C) | 0.5 in | |
| May | 60°F (15°C) | 0.6 in | |
| June | 70°F (21°C) | 0.6 in | |
| July | 73°F (23°C) | 1.8 in | Warmest |
| August | 71°F (22°C) | 2.0 in | Wettest |
| September | 65°F (18°C) | 1.3 in | |
| October | 53°F (11°C) | 1.2 in | |
| November | 40°F (5°C) | 0.7 in | |
| December | 32°F (-0°C) | 0.5 in | Coldest |
Tres Arroyos has a seasonal temperature swing of 42°F / from 32°F in December to 73°F in July. Total annual precipitation is 10.7 inches, with August being the wettest month (2.0") and February the driest (0.4").