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Green River, WY
Full City Profile · Wyoming · Sweetwater County County
3.3
/5.0
B
Good
11,679
Population
846/sq mi density
$85,399
Median Income
$39,310 per capita
$255,600
Home Value
$290,337 Zillow
$912
Median Rent
24.5% income on rent
44°F
Avg Temperature
316 sunny days/yr
184
Violent Crime/100K
813 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$85,399 median income, 3.9% unemployment
A+
Affordability
5.0 / 5.0
$255,600 home value, $912/mo rent
F
Safety
1.0 / 5.0
184 violent crimes/100K
C+
Education
2.8 / 5.0
23.1% bachelor's degree or higher
Green River has a cool climate with an average annual temperature of 44°F (7°C). Winters average 20°F in January while summers reach 70°F in July. The area gets 316 sunny days per year. Annual precipitation totals 10.3 inches. The area receives 38.5 inches of snow annually. Air quality is rated Good with a median AQI of 34.
Temperature
20°F Jan (-7°C)
70°F Jul (21°C)
| Annual Average | 44.1°F |
| 18% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 6,192 ft (1,887 m) |
| Area | 14.0 sq mi (36.3 km²) |
| Population Density | 846/sq mi |
| Coordinates | 41.5129°N, 109.4708°W |
| Timezone | America/Denver |
| County | Sweetwater County County |
| Nearest Airport | Southwest Wyoming Regional (RKS) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0519 ppm |
| NO₂ (Nitrogen Dioxide) | 4.6 ppb |
| SO₂ (Sulfur Dioxide) | 1.08 ppb |
| PM2.5 (Fine Particles) | 3.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 30.6 / 100 |
| Social Vulnerability | 19.3 / 100 |
| Community Resilience | 16.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | No Rating |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 0.5 in | |
| February | 21°F (-6°C) | 0.4 in | Driest |
| March | 31°F (-1°C) | 0.6 in | |
| April | 39°F (4°C) | 0.8 in | |
| May | 48°F (9°C) | 1.1 in | Wettest |
| June | 58°F (14°C) | 0.9 in | |
| July | 70°F (21°C) | 0.8 in | Warmest |
| August | 64°F (18°C) | 0.8 in | |
| September | 54°F (12°C) | 0.8 in | |
| October | 43°F (6°C) | 0.7 in | |
| November | 28°F (-2°C) | 0.5 in | |
| December | 19°F (-7°C) | 0.5 in | Coldest |
Green River has a seasonal temperature swing of 51°F / from 19°F in December to 70°F in July. Total annual precipitation is 8.4 inches, with May being the wettest month (1.1") and February the driest (0.4").