City vs city
Grafton vs Northampton, MA
Grafton currently scores 4 points higher overall than Northampton, with the largest gap in tornado.
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
Grafton: 33/100 · Northampton: 29/100
Grafton is 4 points higher.
Flood
Grafton: 38/100 · Northampton: Unavailable
A score difference cannot be calculated without both sources.
Grafton: FEMA NFHL flood zones: 9 features intersect this tile.
Northampton: Flood model is not available for this location yet.
Wind
Grafton: 26/100 · Northampton: 22/100
Grafton is 4 points higher.
Grafton: Wind exposure derived from ingested design wind / climatology tiles.
Northampton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grafton: 9/100 · Northampton: 9/100
No gap.
Grafton: Lightning exposure derived from ingested climatology tiles.
Northampton: Lightning exposure derived from ingested climatology tiles.
Tornado
Grafton: 0/100 · Northampton: 65/100
Northampton is 65 points higher.
Grafton: Tornado risk derived from NOAA SPC historical reports.
Northampton: Tornado risk derived from NOAA SPC historical reports.
Hail
Grafton: 38/100 · Northampton: 43/100
Northampton is 5 points higher.
Grafton: Hail risk derived from NOAA SPC historical reports.
Northampton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grafton: Unavailable · Northampton: Unavailable
A score difference cannot be calculated without both sources.
Grafton: Storm surge model is not available for this location yet.
Northampton: Storm surge model is not available for this location yet.
Wildfire
Grafton: 57/100 · Northampton: 40/100
Grafton is 17 points higher.
Grafton: Wildfire exposure derived from ingested fire potential tiles.
Northampton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grafton: 27/100 · Northampton: 24/100
Grafton is 3 points higher.
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.
Northampton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.