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Hewitt, NJ
Full City Profile · New Jersey · Passaic County County
3.4
/5.0
B
Good
2,797
Population
605/sq mi density
$182,516
Median Income
$78,257 per capita
$436,700
Home Value
$582,023 Zillow
$2,236
Median Rent
45.7% income on rent
52°F
Avg Temperature
275 sunny days/yr
40
Violent Crime/100K
485 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$182,516 median income, 21.4% unemployment
A+
Affordability
5.0 / 5.0
$436,700 home value, $2,236/mo rent
F
Safety
1.0 / 5.0
40 violent crimes/100K
B+
Education
3.8 / 5.0
34.4% bachelor's degree or higher
Hewitt experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 48.2 inches. Air quality is rated Good with a median AQI of 39.
Temperature
29°F Jan (-2°C)
74°F Jul (23°C)
| Annual Average | 51.8°F |
| 4% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 630 ft (192 m) |
| Area | 5.9 sq mi (15.3 km²) |
| Population Density | 605/sq mi |
| Coordinates | 41.1762°N, 74.3248°W |
| Timezone | America/New_York |
| County | Passaic County County |
| Nearest Airport | New York Stewart International (SWF) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0410 ppm |
| PM2.5 (Fine Particles) | 8.2 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.8 / 100 |
| Social Vulnerability | 76.0 / 100 |
| Community Resilience | 38.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 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 | — | 111 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 74 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 3.8 in | |
| February | 28°F (-2°C) | 3.2 in | Coldest, Driest |
| March | 37°F (3°C) | 4.1 in | |
| April | 47°F (9°C) | 4.4 in | |
| May | 58°F (14°C) | 4.8 in | Wettest |
| June | 66°F (19°C) | 4.4 in | |
| July | 74°F (23°C) | 4.6 in | Warmest |
| August | 70°F (21°C) | 4.3 in | |
| September | 62°F (17°C) | 4.7 in | |
| October | 51°F (11°C) | 4.0 in | |
| November | 42°F (5°C) | 4.4 in | |
| December | 31°F (-0°C) | 3.9 in |
Hewitt has a seasonal temperature swing of 47°F / from 28°F in February to 74°F in July. Total annual precipitation is 50.4 inches, with May being the wettest month (4.8") and February the driest (3.2").