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Rossmoor, NJ
Full City Profile · New Jersey · Middlesex County County
3.5
/5.0
B+
Good
3,136
Population
4,612/sq mi density
$54,367
Median Income
$54,051 per capita
$184,800
Home Value
$455,672 Zillow
$1,568
Median Rent
51.0% income on rent
54°F
Avg Temperature
275 sunny days/yr
100
Violent Crime/100K
681 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$54,367 median income, 2.1% unemployment
A+
Affordability
4.8 / 5.0
$184,800 home value, $1,568/mo rent
F
Safety
1.0 / 5.0
100 violent crimes/100K
B+
Education
3.9 / 5.0
36.7% bachelor's degree or higher
Rossmoor 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. The area gets 275 sunny days per year. 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 39.
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) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 144 ft (44 m) |
| Area | 0.9 sq mi (2.4 km²) |
| Population Density | 4,612/sq mi |
| Coordinates | 40.3348°N, 74.4701°W |
| Timezone | America/New_York |
| County | Middlesex County County |
| Nearest Airport | Central Jersey Regional (JVI) 15 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
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 | — | 127 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 51 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 86 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 3.8 in | Coldest |
| February | 33°F (0°C) | 3.0 in | Driest |
| March | 41°F (5°C) | 4.1 in | |
| April | 51°F (10°C) | 4.1 in | |
| May | 61°F (16°C) | 4.4 in | |
| June | 70°F (21°C) | 3.9 in | |
| July | 76°F (25°C) | 4.9 in | Warmest, Wettest |
| August | 73°F (23°C) | 4.5 in | |
| September | 66°F (19°C) | 4.2 in | |
| October | 55°F (13°C) | 3.5 in | |
| November | 45°F (7°C) | 4.0 in | |
| December | 36°F (2°C) | 3.8 in |
Rossmoor has a seasonal temperature swing of 45°F / from 32°F in January to 76°F in July. Total annual precipitation is 48.0 inches, with July being the wettest month (4.9") and February the driest (3.0").