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West Cornwall, CT
Full City Profile · Connecticut · Northwest Hills Planning Region County
3.7
/5.0
B+
Good
56
Population
36/sq mi density
$148,125
Median Income
$131,477 per capita
$341,700
Home Value
$639,681 Zillow
48°F
Avg Temperature
275 sunny days/yr
124
Violent Crime/100K
1,775 property/100K
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$148,125 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$341,700 home value, /mo rent
F
Safety
1.0 / 5.0
124 violent crimes/100K
A+
Education
5.0 / 5.0
57.5% bachelor's degree or higher
West Cornwall experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 71°F in July. The area gets 275 sunny days per year. Annual precipitation totals 46.9 inches. Air quality is rated Good with a median AQI of 39.
Temperature
25°F Jan (-4°C)
71°F Jul (22°C)
| Annual Average | 48.4°F |
| 10% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 831 ft (253 m) |
| Area | 1.6 sq mi (4.1 km²) |
| Population Density | 36/sq mi |
| Coordinates | 41.8642°N, 73.3608°W |
| Timezone | America/New_York |
| County | Northwest Hills Planning Region County |
| Nearest Airport | Hudson Valley Regional (POU) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 79.6 / 100 |
| Social Vulnerability | 12.8 / 100 |
| Community Resilience | 76.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
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 | — | 120 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 3.4 in | |
| February | 25°F (-4°C) | 3.1 in | Coldest, Driest |
| March | 34°F (1°C) | 3.7 in | |
| April | 45°F (7°C) | 4.0 in | |
| May | 57°F (14°C) | 4.4 in | Wettest |
| June | 65°F (18°C) | 4.1 in | |
| July | 71°F (22°C) | 4.2 in | Warmest |
| August | 68°F (20°C) | 4.2 in | |
| September | 60°F (16°C) | 4.0 in | |
| October | 49°F (9°C) | 3.8 in | |
| November | 39°F (4°C) | 4.1 in | |
| December | 28°F (-2°C) | 3.7 in |
West Cornwall has a seasonal temperature swing of 47°F / from 25°F in February to 71°F in July. Total annual precipitation is 46.7 inches, with May being the wettest month (4.4") and February the driest (3.1").