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South Deerfield, MA
Full City Profile · Massachusetts · Franklin County County
3.6
/5.0
B+
Good
1,822
Population
578/sq mi density
$97,250
Median Income
$58,837 per capita
$419,100
Home Value
$438,550 Zillow
$1,333
Median Rent
19.1% income on rent
47°F
Avg Temperature
246 sunny days/yr
374
Violent Crime/100K
1,142 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$97,250 median income, 3.7% unemployment
A
Affordability
4.3 / 5.0
$419,100 home value, $1,333/mo rent
F
Safety
1.0 / 5.0
374 violent crimes/100K
A
Education
4.4 / 5.0
42.9% bachelor's degree or higher
South Deerfield experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 21°F in January while summers reach 72°F in July. The area gets 246 sunny days per year. Annual precipitation totals 48.6 inches. Air quality is rated Good with a median AQI of 37.
Temperature
21°F Jan (-6°C)
72°F Jul (22°C)
| Annual Average | 47.4°F |
| 12% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 716 ft (218 m) |
| Area | 3.3 sq mi (8.4 km²) |
| Population Density | 578/sq mi |
| Coordinates | 42.4814°N, 72.5898°W |
| Timezone | America/New_York |
| County | Franklin County County |
| Nearest Airport | Westfield-Barnes Regional (BAF) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0398 ppm |
| PM2.5 (Fine Particles) | 8.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 60.7 / 100 |
| Social Vulnerability | 33.0 / 100 |
| Community Resilience | 93.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very 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 | 21°F (-6°C) | 3.5 in | Coldest |
| February | 24°F (-4°C) | 3.0 in | Driest |
| March | 34°F (1°C) | 3.5 in | |
| April | 45°F (7°C) | 3.9 in | |
| May | 57°F (14°C) | 4.1 in | Wettest |
| June | 65°F (19°C) | 3.9 in | |
| July | 72°F (22°C) | 3.8 in | Warmest |
| August | 69°F (21°C) | 4.0 in | |
| September | 61°F (16°C) | 3.8 in | |
| October | 50°F (10°C) | 3.8 in | |
| November | 40°F (5°C) | 4.0 in | |
| December | 29°F (-2°C) | 3.7 in |
South Deerfield has a seasonal temperature swing of 51°F / from 21°F in January to 72°F in July. Total annual precipitation is 44.9 inches, with May being the wettest month (4.1") and February the driest (3.0").