Somerset, NJ
Full City Profile · New Jersey · Middlesex County County
4.8
/5.0
A+
Excellent
23,851
Population
3,768/sq mi density
$113,603
Median Income
$57,140 per capita
$408,600
Home Value
$578,473 Zillow
$2,050
Median Rent
33.0% income on rent
54°F
Avg Temperature
A+
Overall
4.8 / 5.0
Strong
A+
Economy
4.7 / 5.0
$113,603 median income, 3.8% unemployment
A+
Affordability
4.7 / 5.0
$408,600 home value, $2,050/mo rent
A+
Education
5.0 / 5.0
58.6% bachelor's degree or higher
Somerset experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 32°F in January while summers reach 76°F in July. Annual precipitation totals 49.5 inches. The area receives 29.0 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
32°F Jan (-0°C)
76°F Jul (25°C)
| Annual Average | 53.8°F |
| 0% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 76°F (25°C) |
Geography
| Elevation | 111 ft (34 m) |
| Area | 6.4 sq mi (16.7 km²) |
| Population Density | 3,768/sq mi |
| Coordinates | 40.5085°N, 74.5002°W |
| Timezone | America/New_York |
| County | Middlesex County County |
| Nearest Airport | Central Jersey Regional (JVI) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 78.4% |
| Unhealthy Days | 5 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0452 ppm |
| NO₂ (Nitrogen Dioxide) | 12.7 ppb |
| PM2.5 (Fine Particles) | 8.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.8 / 100 |
| Social Vulnerability | 47.4 / 100 |
| Community Resilience | 45.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively Moderate |
| Ice Storm | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 0.3 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1964 | LONG ISLAND, NY | Meteorological | 0.3 m | - | 123 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | - | - | 37 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 99 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 3.7 in | Coldest |
| February | 33°F (1°C) | 3.0 in | Driest |
| March | 41°F (5°C) | 4.4 in | |
| April | 52°F (11°C) | 3.9 in | |
| May | 61°F (16°C) | 4.0 in | |
| June | 71°F (22°C) | 4.8 in | Wettest |
| July | 76°F (25°C) | 4.8 in | Warmest |
| August | 74°F (24°C) | 4.7 in | |
| September | 67°F (20°C) | 4.2 in | |
| October | 55°F (13°C) | 4.1 in | |
| November | 45°F (7°C) | 3.4 in | |
| December | 37°F (3°C) | 4.5 in |
Somerset has a seasonal temperature swing of 45°F / from 32°F in January to 76°F in July. Total annual precipitation is 49.5 inches, with June being the wettest month (4.8") and February the driest (3.0").