Groton Long Point, CT
Full City Profile · Connecticut · Southeastern Connecticut Planning Region County
3.5
/5.0
B+
Good
511
Population
1,188/sq mi density
$122,500
Median Income
$125,694 per capita
$897,400
Home Value
$411,359 Zillow
$2,313
Median Rent
29.2% income on rent
51°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$122,500 median income, 9.0% unemployment
C+
Affordability
2.5 / 5.0
$897,400 home value, $2,313/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
5.0 / 5.0
78.3% bachelor's degree or higher
Groton Long Point experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 31°F in January while summers reach 72°F in July. Annual precipitation totals 39.3 inches. The area receives 24.5 inches of snow annually.
Temperature
31°F Jan (-1°C)
72°F Jul (22°C)
| Annual Average | 51.4°F |
| 5% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 2 ft (1 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 1,188/sq mi |
| Coordinates | 41.3142°N, 72.0102°W |
| Timezone | America/New_York |
| County | Southeastern Connecticut Planning Region County |
| Nearest Airport | Rhode Island Tf Green International (PVD) 41 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.7 / 100 |
| Social Vulnerability | 26.8 / 100 |
| Community Resilience | 86.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Coastal Flood | Relatively Moderate |
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 | - | 108 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 2.7 in | Coldest |
| February | 32°F (0°C) | 2.2 in | Driest |
| March | 39°F (4°C) | 3.8 in | |
| April | 48°F (9°C) | 3.6 in | |
| May | 57°F (14°C) | 3.3 in | |
| June | 66°F (19°C) | 3.3 in | |
| July | 72°F (22°C) | 3.2 in | Warmest |
| August | 72°F (22°C) | 3.3 in | |
| September | 65°F (18°C) | 3.8 in | Wettest |
| October | 54°F (12°C) | 3.7 in | |
| November | 45°F (7°C) | 3.2 in | |
| December | 37°F (3°C) | 3.1 in |
Groton Long Point has a seasonal temperature swing of 42°F / from 31°F in January to 72°F in July. Total annual precipitation is 39.3 inches, with September being the wettest month (3.8") and February the driest (2.2").