Terryville, NY
Full City Profile · New York · Nassau County County
4.0
/5.0
A
Great
10,962
Population
3,469/sq mi density
$112,262
Median Income
$45,694 per capita
$445,100
Home Value
$607,523 Zillow
$2,242
Median Rent
43.5% income on rent
55°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.3 / 5.0
$112,262 median income, 6.4% unemployment
A
Affordability
4.4 / 5.0
$445,100 home value, $2,242/mo rent
B
Education
3.3 / 5.0
28.2% bachelor's degree or higher
Terryville experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 34°F in January while summers reach 75°F in July. Annual precipitation totals 48.5 inches. The area receives 31.8 inches of snow annually. Air quality is rated Good with a median AQI of 31.
Temperature
34°F Jan (1°C)
75°F Jul (24°C)
| Annual Average | 54.7°F |
| 1% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 155 ft (47 m) |
| Area | 3.2 sq mi (8.3 km²) |
| Population Density | 3,469/sq mi |
| Coordinates | 40.9093°N, 73.0487°W |
| Timezone | America/New_York |
| County | Nassau County County |
| Nearest Airport | John F Kennedy International (JFK) 42 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
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 | - | 13 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 3.7 in | Coldest |
| February | 35°F (2°C) | 3.2 in | Driest |
| March | 41°F (5°C) | 4.7 in | Wettest |
| April | 53°F (12°C) | 4.4 in | |
| May | 62°F (16°C) | 3.9 in | |
| June | 70°F (21°C) | 3.9 in | |
| July | 75°F (24°C) | 3.9 in | Warmest |
| August | 74°F (24°C) | 4.0 in | |
| September | 68°F (20°C) | 4.3 in | |
| October | 57°F (14°C) | 4.2 in | |
| November | 48°F (9°C) | 3.7 in | |
| December | 39°F (4°C) | 4.6 in |
Terryville has a seasonal temperature swing of 42°F / from 34°F in January to 75°F in July. Total annual precipitation is 48.5 inches, with March being the wettest month (4.7") and February the driest (3.2").