Grenville, NM
Full City Profile · New Mexico · Union County County
4.3
/5.0
A
Great
40
Population
105/sq mi density
$114,167
Median Income
$44,865 per capita
$107,500
Home Value
$112,600 Zillow
52°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A
Economy
4.4 / 5.0
$114,167 median income, 5.9% unemployment
A+
Affordability
5.0 / 5.0
$107,500 home value, /mo rent
B+
Education
3.5 / 5.0
31.4% bachelor's degree or higher
Grenville experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 34°F in January while summers reach 72°F in July. Annual precipitation totals 16.6 inches. The area receives 17.9 inches of snow annually.
Temperature
34°F Jan (1°C)
72°F Jul (22°C)
| Annual Average | 51.9°F |
| 4% below US avg | |
| January Average | 34°F (1°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 5,971 ft (1,820 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 105/sq mi |
| Coordinates | 36.5905°N, 103.6146°W |
| Timezone | America/Denver |
| County | Union County County |
| Nearest Airport | Southeast Colorado Regional (LAA) 114 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 12.1 / 100 |
| Social Vulnerability | 83.7 / 100 |
| Community Resilience | 10.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively High |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Volcano | No Rating |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 0.4 in | Coldest, Driest |
| February | 36°F (2°C) | 0.4 in | |
| March | 43°F (6°C) | 0.8 in | |
| April | 50°F (10°C) | 1.1 in | |
| May | 59°F (15°C) | 1.7 in | |
| June | 68°F (20°C) | 1.9 in | |
| July | 72°F (22°C) | 3.6 in | Warmest, Wettest |
| August | 70°F (21°C) | 3.2 in | |
| September | 64°F (18°C) | 1.8 in | |
| October | 53°F (12°C) | 1.0 in | |
| November | 42°F (5°C) | 0.4 in | |
| December | 34°F (1°C) | 0.5 in |
Grenville has a seasonal temperature swing of 39°F / from 34°F in January to 72°F in July. Total annual precipitation is 16.6 inches, with July being the wettest month (3.6") and January the driest (0.4").