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Lynnfield, MA
Full City Profile · Massachusetts · Suffolk County County
3.7
/5.0
B+
Good
12,964
Population
1,315/sq mi density
$172,484
Median Income
$76,408 per capita
$904,200
Home Value
$1,059,995 Zillow
$2,333
Median Rent
38.1% income on rent
48°F
Avg Temperature
246 sunny days/yr
15
Violent Crime/100K
586 property/100K
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$172,484 median income, 2.4% unemployment
B+
Affordability
3.7 / 5.0
$904,200 home value, $2,333/mo rent
F
Safety
1.0 / 5.0
15 violent crimes/100K
A+
Education
5.0 / 5.0
61.1% bachelor's degree or higher
Lynnfield experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 26°F in January while summers reach 71°F in July. The area gets 246 sunny days per year. Annual precipitation totals 48.1 inches. The area receives 47.8 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
26°F Jan (-4°C)
71°F Jul (21°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 115 ft (35 m) |
| Area | 9.9 sq mi (25.5 km²) |
| Population Density | 1,315/sq mi |
| Coordinates | 42.5341°N, 71.0383°W |
| Timezone | America/New_York |
| County | Suffolk County County |
| Nearest Airport | Beverly Regional (BVY) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0356 ppm |
| NO₂ (Nitrogen Dioxide) | 15.7 ppb |
| SO₂ (Sulfur Dioxide) | 0.25 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 7.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.5 / 100 |
| Social Vulnerability | 70.6 / 100 |
| Community Resilience | 95.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Very High |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 4.1 in | Coldest |
| February | 28°F (-2°C) | 3.4 in | |
| March | 36°F (2°C) | 3.9 in | |
| April | 46°F (8°C) | 3.8 in | |
| May | 57°F (14°C) | 3.5 in | |
| June | 66°F (19°C) | 3.4 in | |
| July | 71°F (21°C) | 3.2 in | Warmest, Driest |
| August | 70°F (21°C) | 3.4 in | |
| September | 62°F (17°C) | 3.7 in | |
| October | 51°F (11°C) | 3.9 in | |
| November | 42°F (6°C) | 4.1 in | Wettest |
| December | 31°F (-0°C) | 3.9 in |
Lynnfield has a seasonal temperature swing of 45°F / from 26°F in January to 71°F in July. Total annual precipitation is 44.2 inches, with November being the wettest month (4.1") and July the driest (3.2").