Brockton, MA
Full City Profile · Massachusetts · Norfolk County County
2.7
/5.0
C+
Fair
105,080
Population
4,926/sq mi density
$77,089
Median Income
$35,524 per capita
$405,500
Home Value
$508,661 Zillow
$1,545
Median Rent
33.2% income on rent
51°F
Avg Temperature
599
Violent Crime/100K
1,360 property/100K
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$77,089 median income, 8.3% unemployment
B+
Affordability
3.7 / 5.0
$405,500 home value, $1,545/mo rent
F
Safety
1.0 / 5.0
599 violent crimes/100K (58% above avg)
C+
Education
2.7 / 5.0
21.3% bachelor's degree or higher
Brockton experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 30°F in January while summers reach 74°F in July. Annual precipitation totals 50.2 inches. The area receives 34.3 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
30°F Jan (-1°C)
74°F Jul (23°C)
| Annual Average | 51.4°F |
| 5% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 135 ft (41 m) |
| Area | 21.3 sq mi (55.2 km²) |
| Population Density | 4,926/sq mi |
| Coordinates | 42.0825°N, 71.0246°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 | 39.0 |
| Rating | Good |
| Good Days % | 87.2% |
| Unhealthy Days | 0 |
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 | 30°F (-1°C) | 4.0 in | Coldest |
| February | 31°F (-0°C) | 3.6 in | |
| March | 38°F (4°C) | 5.2 in | Wettest |
| April | 49°F (9°C) | 4.5 in | |
| May | 59°F (15°C) | 3.4 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 74°F (23°C) | 3.2 in | Warmest, Driest |
| August | 72°F (22°C) | 3.6 in | |
| September | 65°F (18°C) | 4.1 in | |
| October | 54°F (12°C) | 5.0 in | |
| November | 44°F (7°C) | 4.4 in | |
| December | 35°F (2°C) | 5.1 in |
Brockton has a seasonal temperature swing of 44°F / from 30°F in January to 74°F in July. Total annual precipitation is 50.2 inches, with March being the wettest month (5.2") and July the driest (3.2").