Brockton, MA
Local storm history & FEMA National Risk Index data
Brockton is rated Relatively Moderate for overall natural hazard risk — near the middle compared to other US counties — based on FEMA's National Risk Index for Plymouth County, MA. The county's highest-rated hazards are coastal flooding, inland flooding, and strong wind.
Storm events near Brockton
NOAA-recorded tornado, hail, and flood events within 25 miles of Brockton's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Brockton itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Plymouth County's FEMA National Risk Index scores, covering Brockton along with the rest of the county, not a Brockton-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 53.8 | Very Low |
| Inland Flooding | 92.9 | Relatively Moderate |
| Coastal Flooding | 94.4 | Very High |
| Earthquake | 87.7 | Relatively Low |
| Heat Wave | 83.9 | Relatively Moderate |
| Tornado | 48.2 | Relatively Low |
| Avalanche | — | Not Applicable |
| Cold Wave | 61.6 | Relatively Low |
| Drought | 70 | Relatively Moderate |
| Hail | 7.1 | Very Low |
| Hurricane | 90.7 | Relatively Moderate |
| Ice Storm | 83.1 | Relatively High |
| Landslide | 61.6 | Very Low |
| Lightning | 90.6 | Relatively High |
| Strong Wind | 92.6 | Relatively High |
| Tsunami | — | Insufficient Data |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 39.7 | Relatively Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Plymouth County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Plymouth County:
More on Plymouth County:
Frequently asked questions
What natural hazards is Brockton, MA at risk of?
Brockton is rated Relatively Moderate for overall natural hazard risk by FEMA's National Risk Index — near the middle compared to other US counties. The highest-rated hazards for Plymouth County, where Brockton is located, are coastal flooding, inland flooding, and strong wind.
What is Brockton's biggest natural hazard risk?
Coastal Flooding is the highest-rated hazard for Plymouth County, where Brockton is located, scoring 94.4 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Brockton a high-risk area for natural disasters?
Somewhat — Brockton carries near the middle compared to other US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Moderate" for Plymouth County.
Has Brockton had tornadoes, hail, or flooding?
NOAA has recorded 10 tornado, 46 hail, 278 inland flooding events within 25 miles of Brockton since 2016.