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East Moriches, NY
Full City Profile · New York · Suffolk County County
3.4
/5.0
B
Good
5,794
Population
1,067/sq mi density
$124,028
Median Income
$61,797 per capita
$630,300
Home Value
$754,349 Zillow
$2,273
Median Rent
39.7% income on rent
52°F
Avg Temperature
275 sunny days/yr
22
Violent Crime/100K
356 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$124,028 median income, 0.7% unemployment
B+
Affordability
3.8 / 5.0
$630,300 home value, $2,273/mo rent
F
Safety
1.0 / 5.0
22 violent crimes/100K
B+
Education
3.8 / 5.0
34.7% bachelor's degree or higher
East Moriches experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 44.2 inches. Air quality is rated Good with a median AQI of 36.
Temperature
32°F Jan (-0°C)
74°F Jul (23°C)
| Annual Average | 52.4°F |
| 3% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 5.4 sq mi (14.1 km²) |
| Population Density | 1,067/sq mi |
| Coordinates | 40.8088°N, 72.7566°W |
| Timezone | America/New_York |
| County | Suffolk County County |
| Nearest Airport | John F Kennedy International (JFK) 55 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0454 ppm |
| NO₂ (Nitrogen Dioxide) | 5.8 ppb |
| CO (Carbon Monoxide) | 0.19 ppm |
| PM2.5 (Fine Particles) | 7.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.3 / 100 |
| Social Vulnerability | 21.6 / 100 |
| Community Resilience | 94.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively 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
1 tsunami 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 | — | 29 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 3.7 in | Coldest |
| February | 32°F (-0°C) | 3.4 in | |
| March | 40°F (4°C) | 4.1 in | Wettest |
| April | 48°F (9°C) | 3.7 in | |
| May | 58°F (14°C) | 3.4 in | |
| June | 67°F (19°C) | 2.8 in | Driest |
| July | 74°F (23°C) | 3.1 in | Warmest |
| August | 72°F (22°C) | 4.0 in | |
| September | 65°F (18°C) | 3.3 in | |
| October | 54°F (12°C) | 3.3 in | |
| November | 46°F (8°C) | 4.0 in | |
| December | 36°F (2°C) | 4.1 in |
East Moriches has a seasonal temperature swing of 43°F / from 32°F in January to 74°F in July. Total annual precipitation is 42.9 inches, with March being the wettest month (4.1") and June the driest (2.8").