Durham, CT
Full City Profile · Connecticut · Lower Connecticut River Valley Planning Region County
4.7
/5.0
A+
Excellent
3,508
Population
425/sq mi density
$126,406
Median Income
$57,333 per capita
$378,900
Home Value
$511,598 Zillow
$1,684
Median Rent
51.0% income on rent
51°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A+
Economy
4.6 / 5.0
$126,406 median income, 4.5% unemployment
A+
Affordability
5.0 / 5.0
$378,900 home value, $1,684/mo rent
A+
Education
4.6 / 5.0
45.2% bachelor's degree or higher
Durham experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 28°F in January while summers reach 73°F in July. Annual precipitation totals 44.9 inches. The area receives 38.6 inches of snow annually.
Temperature
28°F Jan (-2°C)
73°F Jul (23°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 153 ft (47 m) |
| Area | 6.3 sq mi (16.2 km²) |
| Population Density | 425/sq mi |
| Coordinates | 41.4689°N, 72.6845°W |
| Timezone | America/New_York |
| County | Lower Connecticut River Valley Planning Region County |
| Nearest Airport | Bradley International (BDL) 32 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 83.8 / 100 |
| Social Vulnerability | 17.9 / 100 |
| Community Resilience | 90.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very 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 | - | 82 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 3.1 in | Coldest |
| February | 30°F (-1°C) | 2.9 in | Driest |
| March | 38°F (3°C) | 4.1 in | |
| April | 49°F (9°C) | 4.1 in | |
| May | 59°F (15°C) | 3.5 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 73°F (23°C) | 3.4 in | Warmest |
| August | 72°F (22°C) | 3.5 in | |
| September | 65°F (18°C) | 4.3 in | |
| October | 53°F (12°C) | 4.5 in | Wettest |
| November | 42°F (6°C) | 3.4 in | |
| December | 33°F (1°C) | 4.1 in |
Durham has a seasonal temperature swing of 45°F / from 28°F in January to 73°F in July. Total annual precipitation is 44.9 inches, with October being the wettest month (4.5") and February the driest (2.9").