City vs city
Gloucester vs Grafton, MA
Grafton currently scores 6 points higher overall than Gloucester, with the largest gap in flood.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Gloucester: 27/100 · Grafton: 33/100
Grafton is 6 points higher.
Flood
Gloucester: 0/100 · Grafton: 38/100
Grafton is 38 points higher.
Gloucester: FEMA NFHL flood zones: 18 features intersect this tile.
Grafton: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Gloucester: 26/100 · Grafton: 26/100
No gap.
Gloucester: Wind exposure derived from ingested design wind / climatology tiles.
Grafton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gloucester: 9/100 · Grafton: 9/100
No gap.
Gloucester: Lightning exposure derived from ingested climatology tiles.
Grafton: Lightning exposure derived from ingested climatology tiles.
Tornado
Gloucester: 0/100 · Grafton: 0/100
No gap.
Gloucester: Tornado risk derived from NOAA SPC historical reports.
Grafton: Tornado risk derived from NOAA SPC historical reports.
Hail
Gloucester: 2/100 · Grafton: 38/100
Grafton is 36 points higher.
Gloucester: Hail risk derived from NOAA SPC historical reports.
Grafton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gloucester: 96/100 · Grafton: Unavailable
A score difference cannot be calculated without both sources.
Gloucester: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Grafton: Storm surge model is not available for this location yet.
Wildfire
Gloucester: 35/100 · Grafton: 57/100
Grafton is 22 points higher.
Gloucester: Wildfire exposure derived from ingested fire potential tiles.
Grafton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gloucester: 23/100 · Grafton: 27/100
Grafton is 4 points higher.
Gloucester: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Grafton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.