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North Granby, CT
Full City Profile · Connecticut · Hampden County County
3.9
/5.0
B+
Good
1,510
Population
181/sq mi density
$114,167
Median Income
$63,885 per capita
$389,200
Home Value
$319,623 Zillow
49°F
Avg Temperature
259 sunny days/yr
119
Violent Crime/100K
1,914 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$114,167 median income, 0.0% unemployment
A+
Affordability
4.8 / 5.0
$389,200 home value, /mo rent
F
Safety
1.0 / 5.0
119 violent crimes/100K
A+
Education
5.0 / 5.0
52.3% bachelor's degree or higher
North Granby experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 25°F in January while summers reach 72°F in July. The area gets 259 sunny days per year. Annual precipitation totals 52.4 inches. Air quality is rated Good with a median AQI of 39.
Temperature
25°F Jan (-4°C)
72°F Jul (22°C)
| Annual Average | 48.7°F |
| 10% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 259 days/yr |
Geography
| Elevation | 394 ft (120 m) |
| Area | 8.3 sq mi (21.6 km²) |
| Population Density | 181/sq mi |
| Coordinates | 42.0160°N, 72.8432°W |
| Timezone | America/New_York |
| County | Hampden County County |
| Nearest Airport | Bradley International (BDL) 10 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0438 ppm |
| NO₂ (Nitrogen Dioxide) | 11.3 ppb |
| SO₂ (Sulfur Dioxide) | 0.22 ppb |
| PM2.5 (Fine Particles) | 7.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.8 / 100 |
| Social Vulnerability | 64.5 / 100 |
| Community Resilience | 73.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| 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 | — | 137 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 3.7 in | |
| February | 24°F (-5°C) | 3.5 in | Coldest, Driest |
| March | 32°F (0°C) | 3.9 in | |
| April | 44°F (6°C) | 4.1 in | |
| May | 55°F (13°C) | 4.5 in | Wettest |
| June | 63°F (17°C) | 4.1 in | |
| July | 72°F (22°C) | 4.0 in | Warmest |
| August | 67°F (20°C) | 4.3 in | |
| September | 60°F (15°C) | 3.9 in | |
| October | 49°F (9°C) | 3.8 in | |
| November | 39°F (4°C) | 4.5 in | |
| December | 28°F (-2°C) | 4.2 in |
North Granby has a seasonal temperature swing of 49°F / from 24°F in February to 72°F in July. Total annual precipitation is 48.6 inches, with May being the wettest month (4.5") and February the driest (3.5").