Thompsonville, CT
Full City Profile · Connecticut · Capitol Planning Region County
3.5
/5.0
B+
Good
7,473
Population
3,663/sq mi density
$71,714
Median Income
$35,465 per capita
$235,200
Home Value
$319,623 Zillow
$1,364
Median Rent
33.5% income on rent
51°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.9 / 5.0
$71,714 median income, 10.2% unemployment
A+
Affordability
4.8 / 5.0
$235,200 home value, $1,364/mo rent
C+
Education
2.8 / 5.0
22.0% bachelor's degree or higher
Thompsonville experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 27°F in January while summers reach 74°F in July. Annual precipitation totals 47.1 inches. The area receives 51.7 inches of snow annually.
Temperature
27°F Jan (-3°C)
74°F Jul (24°C)
| Annual Average | 51.0°F |
| 6% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 74°F (24°C) |
Geography
| Elevation | 135 ft (41 m) |
| Area | 2.0 sq mi (5.3 km²) |
| Population Density | 3,663/sq mi |
| Coordinates | 41.9921°N, 72.5965°W |
| Timezone | America/New_York |
| County | Capitol Planning Region County |
| Nearest Airport | Bradley International (BDL) 6 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.4 / 100 |
| Social Vulnerability | 28.1 / 100 |
| Community Resilience | 64.2 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Moderate |
| 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 | - | 139 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 3.3 in | Coldest |
| February | 30°F (-1°C) | 3.1 in | Driest |
| March | 38°F (3°C) | 3.8 in | |
| April | 50°F (10°C) | 3.9 in | |
| May | 60°F (16°C) | 3.8 in | |
| June | 69°F (21°C) | 4.3 in | |
| July | 74°F (24°C) | 4.2 in | Warmest |
| August | 73°F (23°C) | 4.2 in | |
| September | 65°F (18°C) | 4.4 in | |
| October | 53°F (12°C) | 4.5 in | Wettest |
| November | 42°F (6°C) | 3.5 in | |
| December | 33°F (0°C) | 4.1 in |
Thompsonville has a seasonal temperature swing of 47°F / from 27°F in January to 74°F in July. Total annual precipitation is 47.1 inches, with October being the wettest month (4.5") and February the driest (3.1").