Granby, MA
Full City Profile · Massachusetts · Hampshire County County
3.9
/5.0
B+
Good
1,127
Population
324/sq mi density
$126,136
Median Income
$54,820 per capita
$299,700
Home Value
$385,920 Zillow
49°F
Avg Temperature
50
Violent Crime/100K
298 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$126,136 median income, 4.7% unemployment
A+
Affordability
5.0 / 5.0
$299,700 home value, /mo rent
F
Safety
1.0 / 5.0
50 violent crimes/100K
A+
Education
5.0 / 5.0
50.6% bachelor's degree or higher
Granby experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 25°F in January while summers reach 73°F in July. Annual precipitation totals 45.2 inches. The area receives 36.5 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
25°F Jan (-4°C)
73°F Jul (23°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 259 ft (79 m) |
| Area | 3.5 sq mi (9.0 km²) |
| Population Density | 324/sq mi |
| Coordinates | 42.2660°N, 72.5289°W |
| Timezone | America/New_York |
| County | Hampshire County County |
| Nearest Airport | Westfield-Barnes Regional (BAF) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
| Good Days % | 88.5% |
| Unhealthy Days | 2 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0429 ppm |
| NO₂ (Nitrogen Dioxide) | 2.6 ppb |
| SO₂ (Sulfur Dioxide) | 0.24 ppb |
| PM2.5 (Fine Particles) | 5.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 69.9 / 100 |
| Social Vulnerability | 12.8 / 100 |
| Community Resilience | 94.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.8 in | Coldest |
| February | 28°F (-2°C) | 2.6 in | Driest |
| March | 36°F (2°C) | 3.4 in | |
| April | 48°F (9°C) | 4.1 in | |
| May | 59°F (15°C) | 3.7 in | |
| June | 67°F (20°C) | 4.4 in | |
| July | 73°F (23°C) | 4.2 in | Warmest |
| August | 71°F (22°C) | 3.7 in | |
| September | 63°F (17°C) | 4.6 in | |
| October | 51°F (11°C) | 4.7 in | Wettest |
| November | 41°F (5°C) | 3.5 in | |
| December | 31°F (-1°C) | 3.6 in |
Granby has a seasonal temperature swing of 48°F / from 25°F in January to 73°F in July. Total annual precipitation is 45.2 inches, with October being the wettest month (4.7") and February the driest (2.6").