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Ansonia, CT
Full City Profile · Connecticut · Naugatuck Valley Planning Region County
3.2
/5.0
B
Good
18,951
Population
3,148/sq mi density
$80,585
Median Income
$45,144 per capita
$269,300
Home Value
$366,586 Zillow
$1,405
Median Rent
27.3% income on rent
50°F
Avg Temperature
271 sunny days/yr
193
Violent Crime/100K
1,485 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$80,585 median income, 5.6% unemployment
A+
Affordability
4.8 / 5.0
$269,300 home value, $1,405/mo rent
F
Safety
1.0 / 5.0
193 violent crimes/100K
C+
Education
2.8 / 5.0
22.7% bachelor's degree or higher
Ansonia experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 27°F in January while summers reach 73°F in July. The area gets 271 sunny days per year. Annual precipitation totals 52.0 inches. Air quality is rated Good with a median AQI of 39.
Temperature
27°F Jan (-3°C)
73°F Jul (23°C)
| Annual Average | 50.2°F |
| 7% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 91 ft (28 m) |
| Area | 6.2 sq mi (16.0 km²) |
| Population Density | 3,148/sq mi |
| Coordinates | 41.3442°N, 73.0698°W |
| Timezone | America/New_York |
| County | Naugatuck Valley Planning Region County |
| Nearest Airport | Bradley International (BDL) 46 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.2 / 100 |
| Social Vulnerability | 35.7 / 100 |
| Community Resilience | 77.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Coastal Flood | 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 | — | 61 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 3.8 in | Coldest |
| February | 29°F (-2°C) | 3.5 in | Driest |
| March | 37°F (3°C) | 4.2 in | |
| April | 48°F (9°C) | 4.4 in | |
| May | 58°F (15°C) | 4.5 in | Wettest |
| June | 67°F (19°C) | 3.9 in | |
| July | 73°F (23°C) | 3.9 in | Warmest |
| August | 70°F (21°C) | 3.9 in | |
| September | 63°F (17°C) | 4.0 in | |
| October | 52°F (11°C) | 3.9 in | |
| November | 43°F (6°C) | 4.5 in | |
| December | 32°F (0°C) | 4.2 in |
Ansonia has a seasonal temperature swing of 45°F / from 27°F in January to 73°F in July. Total annual precipitation is 48.6 inches, with May being the wettest month (4.5") and February the driest (3.5").