Franklin Square, NY
Full City Profile · New York · Nassau County County
4.2
/5.0
A
Great
30,559
Population
10,611/sq mi density
$140,051
Median Income
$51,174 per capita
$640,300
Home Value
$818,860 Zillow
$2,052
Median Rent
27.6% income on rent
54°F
Avg Temperature
A
Overall
4.2 / 5.0
Strong
A+
Economy
4.6 / 5.0
$140,051 median income, 5.0% unemployment
A
Affordability
4.1 / 5.0
$640,300 home value, $2,052/mo rent
A
Education
4.0 / 5.0
38.0% bachelor's degree or higher
Franklin Square 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. 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 31.
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) |
Geography
| Elevation | 66 ft (20 m) |
| Area | 2.9 sq mi (7.5 km²) |
| Population Density | 10,611/sq mi |
| Coordinates | 40.7002°N, 73.6775°W |
| Timezone | America/New_York |
| County | Nassau County County |
| Nearest Airport | John F Kennedy International (JFK) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 31.0 |
| Rating | Good |
| Good Days % | 84.2% |
| Unhealthy Days | 0 |
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 | - | 50 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | - | - | 102 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 3.2 in | Coldest |
| February | 35°F (1°C) | 2.8 in | Driest |
| March | 41°F (5°C) | 3.9 in | |
| April | 51°F (11°C) | 3.6 in | |
| May | 61°F (16°C) | 3.7 in | |
| June | 70°F (21°C) | 3.9 in | |
| July | 76°F (25°C) | 3.9 in | Warmest |
| August | 75°F (24°C) | 4.1 in | Wettest |
| September | 68°F (20°C) | 3.6 in | |
| October | 57°F (14°C) | 3.7 in | |
| November | 47°F (8°C) | 3.1 in | |
| December | 38°F (4°C) | 4.0 in |
Franklin Square has a seasonal temperature swing of 43°F / from 33°F in January to 76°F in July. Total annual precipitation is 43.3 inches, with August being the wettest month (4.1") and February the driest (2.8").