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South River, NM
Full City Profile · New Mexico · San Juan County County
2.9
/5.0
C+
Fair
1,594
Population
187/sq mi density
$56,307
Median Income
$37,892 per capita
$215,000
Home Value
$291,092 Zillow
53°F
Avg Temperature
330 sunny days/yr
352
Violent Crime/100K
2,358 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$56,307 median income, 3.9% unemployment
A+
Affordability
4.5 / 5.0
$215,000 home value, /mo rent
F
Safety
1.0 / 5.0
352 violent crimes/100K
C+
Education
2.7 / 5.0
21.4% bachelor's degree or higher
South River experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 32°F in January while summers reach 76°F in July. The area gets 330 sunny days per year. Annual precipitation totals 10.1 inches. The area receives 10.9 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
32°F Jan (-0°C)
76°F Jul (25°C)
| Annual Average | 53.3°F |
| 1% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 5,593 ft (1,705 m) |
| Area | 8.5 sq mi (22.1 km²) |
| Population Density | 187/sq mi |
| Coordinates | 36.7859°N, 108.0577°W |
| Timezone | America/Denver |
| County | San Juan County County |
| Nearest Airport | Four Corners Regional (FMN) 10 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0416 ppm |
| NO₂ (Nitrogen Dioxide) | 8.5 ppb |
| SO₂ (Sulfur Dioxide) | 1.25 ppb |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.3 / 100 |
| Social Vulnerability | 91.5 / 100 |
| Community Resilience | 5.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 0.9 in | |
| February | 36°F (2°C) | 0.7 in | |
| March | 43°F (6°C) | 0.9 in | |
| April | 50°F (10°C) | 0.6 in | |
| May | 60°F (15°C) | 0.6 in | |
| June | 69°F (21°C) | 0.4 in | Driest |
| July | 76°F (25°C) | 1.1 in | Warmest |
| August | 73°F (23°C) | 1.3 in | Wettest |
| September | 65°F (18°C) | 1.0 in | |
| October | 53°F (12°C) | 1.2 in | |
| November | 40°F (4°C) | 0.8 in | |
| December | 31°F (-1°C) | 0.8 in | Coldest |
South River has a seasonal temperature swing of 46°F / from 31°F in December to 76°F in July. Total annual precipitation is 10.2 inches, with August being the wettest month (1.3") and June the driest (0.4").