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Roselle, NJ
Full City Profile · New Jersey · Union County County
3.1
/5.0
B
Good
22,455
Population
8,506/sq mi density
$82,967
Median Income
$40,437 per capita
$336,500
Home Value
$507,614 Zillow
$1,499
Median Rent
31.0% income on rent
55°F
Avg Temperature
271 sunny days/yr
306
Violent Crime/100K
1,548 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$82,967 median income, 5.4% unemployment
A
Affordability
4.4 / 5.0
$336,500 home value, $1,499/mo rent
F
Safety
1.0 / 5.0
306 violent crimes/100K
B
Education
3.1 / 5.0
26.1% bachelor's degree or higher
Roselle experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 77°F in July. The area gets 271 sunny days per year. Annual precipitation totals 50.4 inches. The area receives 26.3 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
33°F Jan (0°C)
77°F Jul (25°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 2.7 sq mi (6.9 km²) |
| Population Density | 8,506/sq mi |
| Coordinates | 40.6522°N, 74.2602°W |
| Timezone | America/New_York |
| County | Union County County |
| Nearest Airport | Newark Liberty International (EWR) 6 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| NO₂ (Nitrogen Dioxide) | 26.6 ppb |
| SO₂ (Sulfur Dioxide) | 0.74 ppb |
| CO (Carbon Monoxide) | 0.42 ppm |
| PM2.5 (Fine Particles) | 9.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.5 / 100 |
| Social Vulnerability | 55.8 / 100 |
| Community Resilience | 30.3 / 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 | Very High |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| 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 | — | 99 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 53 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 124 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 3.9 in | Coldest |
| February | 33°F (1°C) | 3.0 in | Driest |
| March | 41°F (5°C) | 4.1 in | |
| April | 51°F (11°C) | 4.1 in | |
| May | 62°F (16°C) | 4.5 in | |
| June | 70°F (21°C) | 3.8 in | |
| July | 77°F (25°C) | 4.9 in | Warmest, Wettest |
| August | 74°F (23°C) | 4.4 in | |
| September | 67°F (19°C) | 4.3 in | |
| October | 55°F (13°C) | 3.7 in | |
| November | 46°F (8°C) | 4.1 in | |
| December | 36°F (2°C) | 3.8 in |
Roselle has a seasonal temperature swing of 44°F / from 33°F in January to 77°F in July. Total annual precipitation is 48.5 inches, with July being the wettest month (4.9") and February the driest (3.0").