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Medfield, MA
Full City Profile · Massachusetts · Norfolk County County
3.8
/5.0
B+
Good
6,355
Population
1,284/sq mi density
$186,625
Median Income
$96,724 per capita
$734,200
Home Value
$1,039,370 Zillow
$1,667
Median Rent
35.0% income on rent
51°F
Avg Temperature
246 sunny days/yr
32
Violent Crime/100K
491 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$186,625 median income, 3.5% unemployment
A
Affordability
4.5 / 5.0
$734,200 home value, $1,667/mo rent
F
Safety
1.0 / 5.0
32 violent crimes/100K
A+
Education
5.0 / 5.0
72.1% bachelor's degree or higher
Medfield 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. The area gets 246 sunny days per year. Annual precipitation totals 49.6 inches. The area receives 56.1 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
28°F Jan (-2°C)
73°F Jul (23°C)
| Annual Average | 50.8°F |
| 6% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 183 ft (56 m) |
| Area | 5.0 sq mi (13.0 km²) |
| Population Density | 1,284/sq mi |
| Coordinates | 42.1870°N, 71.3004°W |
| Timezone | America/New_York |
| County | Norfolk County County |
| Nearest Airport | General Edward Lawrence Logan International (BOS) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0445 ppm |
| NO₂ (Nitrogen Dioxide) | 7.0 ppb |
| PM2.5 (Fine Particles) | 6.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.0 / 100 |
| Social Vulnerability | 12.8 / 100 |
| Community Resilience | 93.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 4.0 in | |
| February | 28°F (-2°C) | 3.5 in | Coldest, Driest |
| March | 36°F (2°C) | 4.1 in | |
| April | 46°F (8°C) | 3.9 in | |
| May | 57°F (14°C) | 3.5 in | |
| June | 65°F (19°C) | 3.5 in | |
| July | 73°F (23°C) | 3.5 in | Warmest |
| August | 71°F (22°C) | 3.9 in | |
| September | 63°F (17°C) | 3.6 in | |
| October | 52°F (11°C) | 3.9 in | |
| November | 43°F (6°C) | 4.4 in | Wettest |
| December | 32°F (-0°C) | 4.2 in |
Medfield has a seasonal temperature swing of 46°F / from 28°F in February to 73°F in July. Total annual precipitation is 46.1 inches, with November being the wettest month (4.4") and February the driest (3.5").