Portland, CT
Full City Profile · Connecticut · Lower Connecticut River Valley Planning Region County
4.0
/5.0
A
Great
5,970
Population
995/sq mi density
$91,522
Median Income
$46,126 per capita
$267,600
Home Value
$420,480 Zillow
$1,112
Median Rent
35.7% income on rent
52°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.2 / 5.0
$91,522 median income, 5.9% unemployment
A+
Affordability
5.0 / 5.0
$267,600 home value, $1,112/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A
Education
4.3 / 5.0
41.4% bachelor's degree or higher
Portland experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 75°F in July. Annual precipitation totals 42.8 inches. The area receives 51.7 inches of snow annually.
Temperature
29°F Jan (-2°C)
75°F Jul (24°C)
| Annual Average | 52.0°F |
| 4% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 353 ft (108 m) |
| Area | 6.0 sq mi (15.5 km²) |
| Population Density | 995/sq mi |
| Coordinates | 41.5775°N, 72.6198°W |
| Timezone | America/New_York |
| County | Lower Connecticut River Valley Planning Region County |
| Nearest Airport | Bradley International (BDL) 25 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 | - | 95 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.9 in | Coldest |
| February | 31°F (-1°C) | 2.6 in | Driest |
| March | 39°F (4°C) | 3.5 in | |
| April | 50°F (10°C) | 3.8 in | |
| May | 61°F (16°C) | 3.4 in | |
| June | 70°F (21°C) | 3.9 in | |
| July | 75°F (24°C) | 3.9 in | Warmest |
| August | 74°F (23°C) | 3.5 in | |
| September | 66°F (19°C) | 4.0 in | |
| October | 54°F (12°C) | 4.2 in | Wettest |
| November | 43°F (6°C) | 3.4 in | |
| December | 34°F (1°C) | 3.8 in |
Portland has a seasonal temperature swing of 47°F / from 29°F in January to 75°F in July. Total annual precipitation is 42.8 inches, with October being the wettest month (4.2") and February the driest (2.6").