All Countries
Jamesport, NY
Full City Profile · New York · Suffolk County County
3.3
/5.0
B
Good
1,538
Population
342/sq mi density
$105,282
Median Income
$82,694 per capita
$651,900
Home Value
$1,008,524 Zillow
52°F
Avg Temperature
275 sunny days/yr
22
Violent Crime/100K
356 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$105,282 median income, 0.0% unemployment
B
Affordability
3.2 / 5.0
$651,900 home value, /mo rent
F
Safety
1.0 / 5.0
22 violent crimes/100K
A
Education
4.0 / 5.0
37.5% bachelor's degree or higher
Jamesport experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 73°F in July. The area gets 275 sunny days per year. Annual precipitation totals 45.0 inches. Air quality is rated Good with a median AQI of 36.
Temperature
30°F Jan (-1°C)
73°F Jul (23°C)
| Annual Average | 51.7°F |
| 4% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 29 ft (9 m) |
| Area | 4.5 sq mi (11.7 km²) |
| Population Density | 342/sq mi |
| Coordinates | 40.9610°N, 72.5832°W |
| Timezone | America/New_York |
| County | Suffolk County County |
| Nearest Airport | John F Kennedy International (JFK) 66 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 | — | 47 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.9 in | Coldest |
| February | 32°F (-0°C) | 3.6 in | |
| March | 39°F (4°C) | 4.2 in | |
| April | 48°F (9°C) | 3.9 in | |
| May | 58°F (14°C) | 3.5 in | |
| June | 67°F (19°C) | 2.9 in | Driest |
| July | 73°F (23°C) | 3.2 in | Warmest |
| August | 72°F (22°C) | 4.1 in | |
| September | 65°F (18°C) | 3.4 in | |
| October | 54°F (12°C) | 3.4 in | |
| November | 45°F (7°C) | 4.2 in | |
| December | 36°F (2°C) | 4.3 in | Wettest |
Jamesport has a seasonal temperature swing of 43°F / from 30°F in January to 73°F in July. Total annual precipitation is 44.6 inches, with December being the wettest month (4.3") and June the driest (2.9").