Castleton, VT
Full City Profile · Vermont · Rutland County County
5.0
/5.0
A+
Excellent
1,058
Population
840/sq mi density
$276,800
Home Value
$334,732 Zillow
44°F
Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Education
5.0 / 5.0
50.6% bachelor's degree or higher
Castleton has a cool climate with an average annual temperature of 44°F (7°C). Winters average 19°F in January while summers reach 68°F in July. Annual precipitation totals 40.3 inches. The area receives 74.6 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
19°F Jan (-7°C)
68°F Jul (20°C)
| Annual Average | 44.4°F |
| 18% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 480 ft (146 m) |
| Area | 1.3 sq mi (3.3 km²) |
| Population Density | 840/sq mi |
| Coordinates | 43.6054°N, 73.1848°W |
| Timezone | America/New_York |
| County | Rutland County County |
| Nearest Airport | Rutland/Southern Vermont Regional (RUT) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
| Good Days % | 79.5% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0393 ppm |
| NO₂ (Nitrogen Dioxide) | 8.9 ppb |
| SO₂ (Sulfur Dioxide) | 0.27 ppb |
| CO (Carbon Monoxide) | 0.38 ppm |
| PM2.5 (Fine Particles) | 7.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 50.5 / 100 |
| Social Vulnerability | 23.6 / 100 |
| Community Resilience | 77.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 2.7 in | Coldest |
| February | 21°F (-6°C) | 2.2 in | Driest |
| March | 30°F (-1°C) | 2.7 in | |
| April | 43°F (6°C) | 3.1 in | |
| May | 55°F (13°C) | 3.6 in | |
| June | 64°F (18°C) | 4.3 in | |
| July | 68°F (20°C) | 4.6 in | Warmest, Wettest |
| August | 66°F (19°C) | 4.0 in | |
| September | 58°F (15°C) | 3.4 in | |
| October | 47°F (8°C) | 4.0 in | |
| November | 36°F (2°C) | 2.8 in | |
| December | 26°F (-4°C) | 3.0 in |
Castleton has a seasonal temperature swing of 50°F / from 19°F in January to 68°F in July. Total annual precipitation is 40.3 inches, with July being the wettest month (4.6") and February the driest (2.2").