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State Line, PA
Full City Profile · Pennsylvania · Washington County County
3.3
/5.0
B
Good
3,288
Population
1,200/sq mi density
$90,266
Median Income
$36,318 per capita
$243,900
Home Value
$317,484 Zillow
$1,234
Median Rent
24.6% income on rent
55°F
Avg Temperature
302 sunny days/yr
99
Violent Crime/100K
1,580 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$90,266 median income, 0.9% unemployment
A+
Affordability
5.0 / 5.0
$243,900 home value, $1,234/mo rent
F
Safety
1.0 / 5.0
99 violent crimes/100K
C+
Education
2.7 / 5.0
20.9% bachelor's degree or higher
State Line experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 78°F in July. The area gets 302 sunny days per year. Annual precipitation totals 35.6 inches. Air quality is rated Good with a median AQI of 40.
Temperature
33°F Jan (0°C)
78°F Jul (25°C)
| Annual Average | 55.4°F |
| 3% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 676 ft (206 m) |
| Area | 2.7 sq mi (7.1 km²) |
| Population Density | 1,200/sq mi |
| Coordinates | 39.7329°N, 77.7247°W |
| Timezone | America/New_York |
| County | Washington County County |
| Nearest Airport | Hagerstown Regional/Richard A Henson Field (HGR) 2 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0452 ppm |
| PM2.5 (Fine Particles) | 6.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 68.8 / 100 |
| Social Vulnerability | 44.6 / 100 |
| Community Resilience | 73.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| 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 | 33°F (0°C) | 2.7 in | |
| February | 32°F (0°C) | 2.5 in | Coldest, Driest |
| March | 41°F (5°C) | 3.3 in | |
| April | 51°F (11°C) | 3.4 in | |
| May | 62°F (16°C) | 4.0 in | Wettest |
| June | 70°F (21°C) | 3.8 in | |
| July | 78°F (25°C) | 3.5 in | Warmest |
| August | 73°F (23°C) | 3.3 in | |
| September | 66°F (19°C) | 3.3 in | |
| October | 54°F (12°C) | 3.2 in | |
| November | 44°F (7°C) | 3.3 in | |
| December | 34°F (1°C) | 2.8 in |
State Line has a seasonal temperature swing of 45°F / from 32°F in February to 78°F in July. Total annual precipitation is 39.1 inches, with May being the wettest month (4.0") and February the driest (2.5").