St. Clairsville, PA
Full City Profile · Pennsylvania · Blair County County
3.3
/5.0
B
Good
91
Population
3,033/sq mi density
$49,519
Median Income
$22,656 per capita
$129,200
Home Value
$154,500 Zillow
$747
Median Rent
18.4% income on rent
51°F
Avg Temperature
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$49,519 median income, 4.3% unemployment
A+
Affordability
5.0 / 5.0
$129,200 home value, $747/mo rent
F
Education
1.3 / 5.0
4.0% bachelor's degree or higher
St. Clairsville experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 28°F in January while summers reach 73°F in July. Annual precipitation totals 40.5 inches. The area receives 37.6 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
28°F Jan (-2°C)
73°F Jul (23°C)
| Annual Average | 50.5°F |
| 6% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 1,244 ft (379 m) |
| Area | 0.0 sq mi (0.0 km²) |
| Population Density | 3,033/sq mi |
| Coordinates | 40.1559°N, 78.5108°W |
| Timezone | America/New_York |
| County | Blair County County |
| Nearest Airport | Greater Cumberland Regional (CBE) 40 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
| Good Days % | 80.9% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0428 ppm |
| SO₂ (Sulfur Dioxide) | 0.47 ppb |
| PM2.5 (Fine Particles) | 8.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.7 / 100 |
| Social Vulnerability | 57.6 / 100 |
| Community Resilience | 94.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| 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 | 28°F (-2°C) | 2.8 in | Coldest |
| February | 31°F (-1°C) | 2.3 in | Driest |
| March | 39°F (4°C) | 3.4 in | |
| April | 50°F (10°C) | 3.6 in | |
| May | 59°F (15°C) | 4.4 in | Wettest |
| June | 68°F (20°C) | 4.0 in | |
| July | 73°F (23°C) | 3.8 in | Warmest |
| August | 71°F (21°C) | 3.3 in | |
| September | 64°F (18°C) | 3.8 in | |
| October | 52°F (11°C) | 3.1 in | |
| November | 41°F (5°C) | 3.0 in | |
| December | 33°F (0°C) | 3.1 in |
St. Clairsville has a seasonal temperature swing of 45°F / from 28°F in January to 73°F in July. Total annual precipitation is 40.5 inches, with May being the wettest month (4.4") and February the driest (2.3").