Merion Station, PA
Full City Profile · Pennsylvania · Philadelphia County County
4.8
/5.0
A+
Excellent
5,796
Population
4,358/sq mi density
$250,001
Median Income
$113,467 per capita
$875,500
Home Value
$1,104,757 Zillow
$2,395
Median Rent
19.2% income on rent
56°F
Avg Temperature
A+
Overall
4.8 / 5.0
Strong
A+
Economy
4.8 / 5.0
$250,001 median income, 3.1% unemployment
A+
Affordability
4.7 / 5.0
$875,500 home value, $2,395/mo rent
A+
Education
5.0 / 5.0
85.3% bachelor's degree or higher
Merion Station enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 34°F in January while summers reach 79°F in July. Annual precipitation totals 44.1 inches. The area receives 23.1 inches of snow annually. Air quality is rated Moderate with a median AQI of 52.
Temperature
34°F Jan (1°C)
79°F Jul (26°C)
| Annual Average | 56.3°F |
| 4% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 285 ft (87 m) |
| Area | 1.3 sq mi (3.4 km²) |
| Population Density | 4,358/sq mi |
| Coordinates | 40.0036°N, 75.2501°W |
| Timezone | America/New_York |
| County | Philadelphia County County |
| Nearest Airport | Philadelphia International (PHL) 9 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 52.0 |
| Rating | Moderate |
| Good Days % | 47.3% |
| Unhealthy Days | 10 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0428 ppm |
| NO₂ (Nitrogen Dioxide) | 18.7 ppb |
| SO₂ (Sulfur Dioxide) | 0.54 ppb |
| CO (Carbon Monoxide) | 0.38 ppm |
| PM2.5 (Fine Particles) | 11.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.6 / 100 |
| Social Vulnerability | 88.1 / 100 |
| Community Resilience | 48.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Relatively High |
| Wildfire | Very Low |
| Flood | Very High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Very High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Very High |
| Landslide | Relatively Low |
| Coastal Flood | Relatively High |
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 | - | - | 80 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 23 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 3.1 in | Coldest |
| February | 36°F (2°C) | 2.8 in | Driest |
| March | 44°F (6°C) | 4.0 in | |
| April | 55°F (13°C) | 3.5 in | |
| May | 64°F (18°C) | 3.3 in | |
| June | 74°F (23°C) | 4.0 in | |
| July | 79°F (26°C) | 4.4 in | Warmest |
| August | 77°F (25°C) | 4.3 in | |
| September | 70°F (21°C) | 4.4 in | Wettest |
| October | 58°F (15°C) | 3.5 in | |
| November | 47°F (9°C) | 2.9 in | |
| December | 39°F (4°C) | 4.0 in |
Merion Station has a seasonal temperature swing of 45°F / from 34°F in January to 79°F in July. Total annual precipitation is 44.1 inches, with September being the wettest month (4.4") and February the driest (2.8").