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North Valley Stream, NY
Full City Profile · New York · Nassau County County
3.6
/5.0
B+
Good
17,756
Population
9,495/sq mi density
$145,204
Median Income
$51,891 per capita
$588,800
Home Value
$709,848 Zillow
$2,155
Median Rent
51.0% income on rent
54°F
Avg Temperature
275 sunny days/yr
119
Violent Crime/100K
785 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$145,204 median income, 3.2% unemployment
A
Affordability
4.4 / 5.0
$588,800 home value, $2,155/mo rent
F
Safety
1.0 / 5.0
119 violent crimes/100K
A
Education
4.2 / 5.0
40.4% bachelor's degree or higher
North Valley Stream experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 33°F in January while summers reach 76°F in July. The area gets 275 sunny days per year. Annual precipitation totals 43.3 inches. The area receives 25.9 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
33°F Jan (0°C)
76°F Jul (25°C)
| Annual Average | 54.3°F |
| 1% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 47 ft (14 m) |
| Area | 1.9 sq mi (4.9 km²) |
| Population Density | 9,495/sq mi |
| Coordinates | 40.6843°N, 73.7081°W |
| Timezone | America/New_York |
| County | Nassau County County |
| Nearest Airport | John F Kennedy International (JFK) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.1 / 100 |
| Social Vulnerability | 25.9 / 100 |
| Community Resilience | 97.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Very High |
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 | — | 53 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 99 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 3.4 in | Coldest |
| February | 33°F (1°C) | 3.0 in | Driest |
| March | 41°F (5°C) | 4.1 in | |
| April | 51°F (10°C) | 3.7 in | |
| May | 61°F (16°C) | 3.9 in | |
| June | 70°F (21°C) | 3.1 in | |
| July | 76°F (25°C) | 3.9 in | Warmest |
| August | 74°F (23°C) | 4.4 in | Wettest |
| September | 67°F (19°C) | 3.5 in | |
| October | 56°F (13°C) | 3.4 in | |
| November | 46°F (8°C) | 3.8 in | |
| December | 37°F (3°C) | 3.7 in |
North Valley Stream has a seasonal temperature swing of 43°F / from 33°F in January to 76°F in July. Total annual precipitation is 43.8 inches, with August being the wettest month (4.4") and February the driest (3.0").