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Penn Wynne, PA
Full City Profile · Pennsylvania · Delaware County County
3.9
/5.0
B+
Good
6,220
Population
5,868/sq mi density
$156,056
Median Income
$74,222 per capita
$532,200
Home Value
$772,061 Zillow
$2,291
Median Rent
22.6% income on rent
58°F
Avg Temperature
290 sunny days/yr
70
Violent Crime/100K
326 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$156,056 median income, 2.8% unemployment
A+
Affordability
4.8 / 5.0
$532,200 home value, $2,291/mo rent
F
Safety
1.0 / 5.0
70 violent crimes/100K
A+
Education
5.0 / 5.0
72.4% bachelor's degree or higher
Penn Wynne enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 35°F in January while summers reach 80°F in July. The area gets 290 sunny days per year. Annual precipitation totals 50.7 inches. The area receives 16.1 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
35°F Jan (2°C)
80°F Jul (27°C)
| Annual Average | 57.7°F |
| 7% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 221 ft (67 m) |
| Area | 1.1 sq mi (2.7 km²) |
| Population Density | 5,868/sq mi |
| Coordinates | 39.9867°N, 75.2715°W |
| Timezone | America/New_York |
| County | Delaware County County |
| Nearest Airport | Philadelphia International (PHL) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0484 ppm |
| NO₂ (Nitrogen Dioxide) | 15.0 ppb |
| PM2.5 (Fine Particles) | 10.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.9 / 100 |
| Social Vulnerability | 33.0 / 100 |
| Community Resilience | 84.3 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
| 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 | — | — | 83 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 22 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 3.5 in | |
| February | 34°F (1°C) | 2.8 in | Coldest, Driest |
| March | 43°F (6°C) | 3.9 in | |
| April | 52°F (11°C) | 3.7 in | |
| May | 63°F (17°C) | 4.1 in | |
| June | 72°F (22°C) | 3.6 in | |
| July | 80°F (27°C) | 4.5 in | Warmest, Wettest |
| August | 75°F (24°C) | 4.2 in | |
| September | 68°F (20°C) | 3.9 in | |
| October | 57°F (14°C) | 3.0 in | |
| November | 47°F (8°C) | 3.5 in | |
| December | 37°F (3°C) | 3.5 in |
Penn Wynne has a seasonal temperature swing of 46°F / from 34°F in February to 80°F in July. Total annual precipitation is 44.2 inches, with July being the wettest month (4.5") and February the driest (2.8").