All Countries
Somerdale, NJ
Full City Profile · New Jersey · Gloucester County County
3.1
/5.0
B
Good
5,535
Population
3,982/sq mi density
$79,101
Median Income
$43,990 per capita
$221,600
Home Value
$338,572 Zillow
$1,141
Median Rent
36.7% income on rent
55°F
Avg Temperature
293 sunny days/yr
219
Violent Crime/100K
4,789 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$79,101 median income, 5.8% unemployment
A+
Affordability
5.0 / 5.0
$221,600 home value, $1,141/mo rent
F
Safety
1.0 / 5.0
219 violent crimes/100K
C+
Education
2.7 / 5.0
21.3% bachelor's degree or higher
Somerdale experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 48.1 inches. Air quality is rated Good with a median AQI of 39.
Temperature
33°F Jan (0°C)
77°F Jul (25°C)
| Annual Average | 54.8°F |
| 1% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 84 ft (26 m) |
| Area | 1.4 sq mi (3.6 km²) |
| Population Density | 3,982/sq mi |
| Coordinates | 39.8454°N, 75.0217°W |
| Timezone | America/New_York |
| County | Gloucester County County |
| Nearest Airport | South Jersey Regional (LLY) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0470 ppm |
| PM2.5 (Fine Particles) | 7.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.6 / 100 |
| Social Vulnerability | 16.0 / 100 |
| Community Resilience | 85.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very 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 | — | — | 92 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 16 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 3.5 in | Coldest |
| February | 35°F (2°C) | 2.8 in | Driest |
| March | 43°F (6°C) | 4.0 in | |
| April | 53°F (12°C) | 3.8 in | |
| May | 63°F (17°C) | 4.1 in | |
| June | 72°F (22°C) | 3.6 in | |
| July | 77°F (25°C) | 4.5 in | Warmest, Wettest |
| August | 75°F (24°C) | 4.5 in | |
| September | 68°F (20°C) | 3.9 in | |
| October | 57°F (14°C) | 3.2 in | |
| November | 47°F (8°C) | 3.5 in | |
| December | 37°F (3°C) | 3.5 in |
Somerdale has a seasonal temperature swing of 45°F / from 33°F in January to 77°F in July. Total annual precipitation is 44.9 inches, with July being the wettest month (4.5") and February the driest (2.8").