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Boulder Flats, WY
Full City Profile · Wyoming · Fremont County County
3.0
/5.0
B
Good
470
Population
26/sq mi density
$80,250
Median Income
$31,635 per capita
$192,900
Home Value
$359,362 Zillow
$1,031
Median Rent
20.6% income on rent
45°F
Avg Temperature
302 sunny days/yr
26
Violent Crime/100K
3,184 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$80,250 median income, 8.7% unemployment
A+
Affordability
5.0 / 5.0
$192,900 home value, $1,031/mo rent
F
Safety
1.0 / 5.0
26 violent crimes/100K
B
Education
3.2 / 5.0
27.9% bachelor's degree or higher
Boulder Flats has a cool climate with an average annual temperature of 45°F (7°C). Winters average 21°F in January while summers reach 72°F in July. The area gets 302 sunny days per year. Annual precipitation totals 13.2 inches. The area receives 87.6 inches of snow annually. Air quality is rated Good with a median AQI of 34.
Temperature
21°F Jan (-6°C)
72°F Jul (22°C)
| Annual Average | 45.1°F |
| 16% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 5,583 ft (1,702 m) |
| Area | 18.2 sq mi (47.1 km²) |
| Population Density | 26/sq mi |
| Coordinates | 42.9156°N, 108.7993°W |
| Timezone | America/Denver |
| County | Fremont County County |
| Nearest Airport | Central Wyoming Regional (RIW) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0494 ppm |
| NO₂ (Nitrogen Dioxide) | 2.8 ppb |
| SO₂ (Sulfur Dioxide) | 1.82 ppb |
| PM2.5 (Fine Particles) | 4.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 59.7 / 100 |
| Social Vulnerability | 52.8 / 100 |
| Community Resilience | 11.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 0.4 in | |
| February | 24°F (-5°C) | 0.4 in | Driest |
| March | 35°F (1°C) | 0.8 in | |
| April | 43°F (6°C) | 1.6 in | |
| May | 53°F (11°C) | 2.1 in | Wettest |
| June | 62°F (17°C) | 1.1 in | |
| July | 72°F (22°C) | 0.8 in | Warmest |
| August | 67°F (20°C) | 0.6 in | |
| September | 57°F (14°C) | 1.0 in | |
| October | 45°F (7°C) | 1.1 in | |
| November | 30°F (-1°C) | 0.7 in | |
| December | 19°F (-7°C) | 0.4 in | Coldest |
Boulder Flats has a seasonal temperature swing of 52°F / from 19°F in December to 72°F in July. Total annual precipitation is 10.9 inches, with May being the wettest month (2.1") and February the driest (0.4").