Newcastle, WY
Full City Profile · Wyoming · Weston County County
3.2
/5.0
B
Good
3,348
Population
1,308/sq mi density
$77,014
Median Income
$33,987 per capita
$173,500
Home Value
$253,767 Zillow
$711
Median Rent
9.0% income on rent
47°F
Avg Temperature
121
Violent Crime/100K
844 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$77,014 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$173,500 home value, $711/mo rent
F
Safety
1.0 / 5.0
121 violent crimes/100K
C
Education
2.4 / 5.0
17.0% bachelor's degree or higher
Newcastle experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 24°F in January while summers reach 73°F in July. Annual precipitation totals 17.2 inches. The area receives 38.9 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
24°F Jan (-4°C)
73°F Jul (23°C)
| Annual Average | 47.3°F |
| 12% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 4,376 ft (1,334 m) |
| Area | 2.6 sq mi (6.6 km²) |
| Population Density | 1,308/sq mi |
| Coordinates | 43.8503°N, 104.1965°W |
| Timezone | America/Denver |
| County | Weston County County |
| Nearest Airport | Ellsworth Afb (RCA) 58 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
| Good Days % | 87.7% |
| Unhealthy Days | 5 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0477 ppm |
| SO₂ (Sulfur Dioxide) | 1.10 ppb |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 7.9 / 100 |
| Social Vulnerability | 21.3 / 100 |
| Community Resilience | 3.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 0.5 in | Coldest, Driest |
| February | 27°F (-3°C) | 0.7 in | |
| March | 37°F (3°C) | 0.8 in | |
| April | 45°F (7°C) | 1.7 in | |
| May | 55°F (13°C) | 2.9 in | Wettest |
| June | 65°F (19°C) | 2.7 in | |
| July | 73°F (23°C) | 2.5 in | Warmest |
| August | 72°F (22°C) | 1.8 in | |
| September | 62°F (17°C) | 1.2 in | |
| October | 47°F (8°C) | 1.2 in | |
| November | 35°F (1°C) | 0.6 in | |
| December | 25°F (-4°C) | 0.5 in |
Newcastle has a seasonal temperature swing of 49°F / from 24°F in January to 73°F in July. Total annual precipitation is 17.2 inches, with May being the wettest month (2.9") and January the driest (0.5").