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Willow Street, PA
Full City Profile · Pennsylvania · York County County
4.0
/5.0
A
Great
10,010
Population
1,833/sq mi density
$106,867
Median Income
$54,203 per capita
$298,200
Home Value
$364,463 Zillow
$2,453
Median Rent
36.6% income on rent
55°F
Avg Temperature
293 sunny days/yr
679
Violent Crime/100K
3,862 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$106,867 median income, 0.7% unemployment
A+
Affordability
5.0 / 5.0
$298,200 home value, $2,453/mo rent
F
Safety
1.0 / 5.0
679 violent crimes/100K (79% above avg)
A+
Education
4.9 / 5.0
49.0% bachelor's degree or higher
Willow Street experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 32°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 46.3 inches. The area receives 21.3 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
32°F Jan (0°C)
77°F Jul (25°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 32°F (0°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 433 ft (132 m) |
| Area | 5.5 sq mi (14.1 km²) |
| Population Density | 1,833/sq mi |
| Coordinates | 39.9809°N, 76.2719°W |
| Timezone | America/New_York |
| County | York County County |
| Nearest Airport | Harrisburg International (MDT) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
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
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 140 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 94 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 3.1 in | |
| February | 31°F (-0°C) | 2.6 in | Coldest, Driest |
| March | 40°F (5°C) | 3.2 in | |
| April | 50°F (10°C) | 3.5 in | |
| May | 61°F (16°C) | 4.1 in | |
| June | 69°F (21°C) | 4.1 in | |
| July | 77°F (25°C) | 4.3 in | Warmest, Wettest |
| August | 73°F (23°C) | 3.7 in | |
| September | 66°F (19°C) | 3.6 in | |
| October | 54°F (12°C) | 3.1 in | |
| November | 45°F (7°C) | 3.6 in | |
| December | 35°F (2°C) | 3.4 in |
Willow Street has a seasonal temperature swing of 46°F / from 31°F in February to 77°F in July. Total annual precipitation is 42.2 inches, with July being the wettest month (4.3") and February the driest (2.6").