All Countries
Dorchester, NJ
Full City Profile · New Jersey · Cape May County County
2.6
/5.0
C+
Fair
78
Population
159/sq mi density
$100,875
Median Income
$28,168 per capita
56°F
Avg Temperature
297 sunny days/yr
692
Violent Crime/100K
6,725 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$100,875 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
692 violent crimes/100K (82% above avg)
B
Education
3.0 / 5.0
25.4% bachelor's degree or higher
Dorchester 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 | 15 ft (5 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 159/sq mi |
| Coordinates | 39.2699°N, 74.9713°W |
| Timezone | America/New_York |
| County | Cape May County County |
| Nearest Airport | Atlantic City International (ACY) 25 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 | — | — | 62 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 | 35°F (2°C) | 3.1 in | Coldest, Driest |
| March | 43°F (6°C) | 3.8 in | |
| April | 52°F (11°C) | 3.6 in | |
| May | 61°F (16°C) | 3.5 in | |
| June | 70°F (21°C) | 3.1 in | |
| July | 77°F (25°C) | 3.7 in | Warmest |
| August | 74°F (23°C) | 4.3 in | Wettest |
| September | 68°F (20°C) | 3.4 in | |
| October | 57°F (14°C) | 3.2 in | |
| November | 47°F (9°C) | 3.4 in | |
| December | 38°F (4°C) | 3.5 in |
Dorchester has a seasonal temperature swing of 41°F / from 35°F in February to 77°F in July. Total annual precipitation is 42.0 inches, with August being the wettest month (4.3") and February the driest (3.1").