Stewartstown, PA
Full City Profile · Pennsylvania · York County County
4.0
/5.0
A
Great
1,863
Population
2,218/sq mi density
$69,583
Median Income
$41,649 per capita
$250,400
Home Value
$399,799 Zillow
$864
Median Rent
35.7% income on rent
54°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.1 / 5.0
$69,583 median income, 3.1% unemployment
A+
Affordability
4.7 / 5.0
$250,400 home value, $864/mo rent
B
Education
3.4 / 5.0
29.9% bachelor's degree or higher
Stewartstown experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 32°F in January while summers reach 75°F in July. Annual precipitation totals 47.9 inches. The area receives 28.8 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
32°F Jan (-0°C)
75°F Jul (24°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 871 ft (265 m) |
| Area | 0.8 sq mi (2.2 km²) |
| Population Density | 2,218/sq mi |
| Coordinates | 39.7528°N, 76.5925°W |
| Timezone | America/New_York |
| County | York County County |
| Nearest Airport | Harrisburg International (MDT) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 65.6% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0476 ppm |
| NO₂ (Nitrogen Dioxide) | 14.2 ppb |
| SO₂ (Sulfur Dioxide) | 0.63 ppb |
| PM2.5 (Fine Particles) | 10.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 90.4 / 100 |
| Social Vulnerability | 17.1 / 100 |
| Community Resilience | 83.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 119 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 3.4 in | Coldest |
| February | 34°F (1°C) | 2.8 in | Driest |
| March | 42°F (5°C) | 4.1 in | |
| April | 53°F (12°C) | 3.8 in | |
| May | 62°F (17°C) | 3.8 in | |
| June | 70°F (21°C) | 4.1 in | |
| July | 75°F (24°C) | 4.8 in | Warmest |
| August | 73°F (23°C) | 4.2 in | |
| September | 67°F (19°C) | 5.2 in | Wettest |
| October | 55°F (13°C) | 4.4 in | |
| November | 45°F (7°C) | 3.5 in | |
| December | 36°F (2°C) | 3.8 in |
Stewartstown has a seasonal temperature swing of 43°F / from 32°F in January to 75°F in July. Total annual precipitation is 47.9 inches, with September being the wettest month (5.2") and February the driest (2.8").