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Dennisville, NJ
Full City Profile · New Jersey · Cape May County County
4.3
/5.0
A
Great
667
Population
152/sq mi density
$96,641
Median Income
$50,694 per capita
$290,700
Home Value
$316,576 Zillow
$1,132
Median Rent
17.6% income on rent
56°F
Avg Temperature
297 sunny days/yr
A
Overall
4.3 / 5.0
Strong
A+
Economy
4.9 / 5.0
$96,641 median income, 1.5% unemployment
A+
Affordability
5.0 / 5.0
$290,700 home value, $1,132/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
4.9 / 5.0
48.2% bachelor's degree or higher
Dennisville enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 36°F in January while summers reach 77°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 39.
Temperature
36°F Jan (2°C)
77°F Jul (25°C)
| Annual Average | 55.7°F |
| 3% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 17 ft (5 m) |
| Area | 4.6 sq mi (11.9 km²) |
| Population Density | 152/sq mi |
| Coordinates | 39.2066°N, 74.8184°W |
| Timezone | America/New_York |
| County | Cape May County County |
| Nearest Airport | Atlantic City International (ACY) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.0 / 100 |
| Social Vulnerability | 37.2 / 100 |
| Community Resilience | 98.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 74 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 3.5 in | |
| February | 36°F (2°C) | 3.1 in | Coldest |
| March | 43°F (6°C) | 3.9 in | |
| April | 52°F (11°C) | 3.5 in | |
| May | 61°F (16°C) | 3.4 in | |
| June | 70°F (21°C) | 3.0 in | Driest |
| July | 77°F (25°C) | 3.6 in | Warmest |
| August | 74°F (23°C) | 4.3 in | Wettest |
| September | 68°F (20°C) | 3.2 in | |
| October | 57°F (14°C) | 3.1 in | |
| November | 48°F (9°C) | 3.3 in | |
| December | 39°F (4°C) | 3.4 in |
Dennisville has a seasonal temperature swing of 41°F / from 36°F in February to 77°F in July. Total annual precipitation is 41.3 inches, with August being the wettest month (4.3") and June the driest (3.0").