Port Monmouth, NJ
Full City Profile · New Jersey · Richmond County County
4.0
/5.0
A
Great
3,285
Population
2,527/sq mi density
$106,677
Median Income
$53,520 per capita
$423,600
Home Value
$631,160 Zillow
$1,169
Median Rent
47.7% income on rent
54°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.4 / 5.0
$106,677 median income, 5.9% unemployment
A
Affordability
4.4 / 5.0
$423,600 home value, $1,169/mo rent
B
Education
3.1 / 5.0
26.1% bachelor's degree or higher
Port Monmouth experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 33°F in January while summers reach 75°F in July. Annual precipitation totals 52.5 inches. The area receives 31.5 inches of snow annually.
Temperature
33°F Jan (1°C)
75°F Jul (24°C)
| Annual Average | 53.7°F |
| 1% below US avg | |
| January Average | 33°F (1°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 3 ft (1 m) |
| Area | 1.3 sq mi (3.5 km²) |
| Population Density | 2,527/sq mi |
| Coordinates | 40.4342°N, 74.1007°W |
| Timezone | America/New_York |
| County | Richmond County County |
| Nearest Airport | Newark Liberty International (EWR) 18 miles away |
Precipitation & Snow
Air Quality
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0429 ppm |
| PM2.5 (Fine Particles) | 9.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.0 / 100 |
| Social Vulnerability | 61.6 / 100 |
| Community Resilience | 68.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
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 | - | 94 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | - | - | 71 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 117 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 4.2 in | Coldest |
| February | 35°F (1°C) | 3.3 in | Driest |
| March | 41°F (5°C) | 4.3 in | |
| April | 50°F (10°C) | 3.9 in | |
| May | 60°F (15°C) | 4.1 in | |
| June | 69°F (21°C) | 4.3 in | |
| July | 75°F (24°C) | 4.4 in | Warmest |
| August | 74°F (23°C) | 6.3 in | Wettest |
| September | 68°F (20°C) | 4.3 in | |
| October | 56°F (13°C) | 4.7 in | |
| November | 46°F (8°C) | 3.8 in | |
| December | 38°F (4°C) | 4.8 in |
Port Monmouth has a seasonal temperature swing of 42°F / from 33°F in January to 75°F in July. Total annual precipitation is 52.5 inches, with August being the wettest month (6.3") and February the driest (3.3").