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Rock River, WY
Full City Profile · Wyoming · Albany County County
3.4
/5.0
B
Good
254
Population
109/sq mi density
$62,750
Median Income
$58,429 per capita
$128,300
Home Value
$169,769 Zillow
$1,558
Median Rent
18.0% income on rent
42°F
Avg Temperature
316 sunny days/yr
150
Violent Crime/100K
2,201 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$62,750 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$128,300 home value, $1,558/mo rent
F
Safety
1.0 / 5.0
150 violent crimes/100K
A+
Education
4.5 / 5.0
43.9% bachelor's degree or higher
Rock River has a cool climate with an average annual temperature of 42°F (6°C). Winters average 21°F in January while summers reach 67°F in July. The area gets 316 sunny days per year. Annual precipitation totals 11.2 inches. The area receives 51.7 inches of snow annually. Air quality is rated Good with a median AQI of 34.
Temperature
21°F Jan (-6°C)
67°F Jul (19°C)
| Annual Average | 42.2°F |
| 22% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 6,843 ft (2,086 m) |
| Area | 2.3 sq mi (6.0 km²) |
| Population Density | 109/sq mi |
| Coordinates | 41.7317°N, 105.9751°W |
| Timezone | America/Denver |
| County | Albany County County |
| Nearest Airport | Laramie Regional (LAR) 33 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0468 ppm |
| NO₂ (Nitrogen Dioxide) | 21.9 ppb |
| SO₂ (Sulfur Dioxide) | 0.54 ppb |
| PM2.5 (Fine Particles) | 2.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 48.5 / 100 |
| Social Vulnerability | 21.1 / 100 |
| Community Resilience | 74.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | No Rating |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 0.5 in | Coldest |
| February | 26°F (-4°C) | 0.5 in | Driest |
| March | 32°F (-0°C) | 0.8 in | |
| April | 39°F (4°C) | 1.2 in | |
| May | 48°F (9°C) | 1.5 in | Wettest |
| June | 59°F (15°C) | 1.5 in | |
| July | 67°F (19°C) | 1.3 in | Warmest |
| August | 64°F (18°C) | 1.0 in | |
| September | 55°F (13°C) | 1.0 in | |
| October | 44°F (6°C) | 0.8 in | |
| November | 31°F (-1°C) | 0.7 in | |
| December | 24°F (-5°C) | 0.6 in |
Rock River has a seasonal temperature swing of 46°F / from 21°F in January to 67°F in July. Total annual precipitation is 11.3 inches, with May being the wettest month (1.5") and February the driest (0.5").