All Countries
Interlaken, NJ
Full City Profile · New Jersey · Monmouth County County
4.1
/5.0
A
Great
821
Population
2,488/sq mi density
$180,972
Median Income
$88,472 per capita
$935,600
Home Value
$1,518,015 Zillow
$3,417
Median Rent
26.3% income on rent
54°F
Avg Temperature
271 sunny days/yr
A
Overall
4.1 / 5.0
Strong
A+
Economy
5.0 / 5.0
$180,972 median income, 2.0% unemployment
B+
Affordability
3.8 / 5.0
$935,600 home value, $3,417/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
5.0 / 5.0
67.7% bachelor's degree or higher
Interlaken 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. The area gets 271 sunny days per year. Annual precipitation totals 52.5 inches. Air quality is rated Good with a median AQI of 39.
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) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 17 ft (5 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 2,488/sq mi |
| Coordinates | 40.2343°N, 74.0159°W |
| Timezone | America/New_York |
| County | Monmouth County County |
| Nearest Airport | John F Kennedy International (JFK) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0440 ppm |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.3 / 100 |
| Social Vulnerability | 15.8 / 100 |
| Community Resilience | 91.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Very 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
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 | — | 100 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 88 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 112 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 3.7 in | |
| February | 33°F (1°C) | 3.2 in | Coldest, Driest |
| March | 41°F (5°C) | 4.1 in | |
| April | 50°F (10°C) | 4.0 in | |
| May | 60°F (16°C) | 4.1 in | |
| June | 69°F (20°C) | 3.4 in | |
| July | 75°F (24°C) | 4.3 in | Warmest |
| August | 73°F (23°C) | 4.7 in | Wettest |
| September | 66°F (19°C) | 3.9 in | |
| October | 55°F (13°C) | 3.5 in | |
| November | 46°F (8°C) | 4.0 in | |
| December | 37°F (3°C) | 3.8 in |
Interlaken has a seasonal temperature swing of 42°F / from 33°F in February to 75°F in July. Total annual precipitation is 46.8 inches, with August being the wettest month (4.7") and February the driest (3.2").