City vs city
Boston vs Somerville, MA
Boston currently scores 1 points higher overall than Somerville, with the largest gap in hail.
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 is a current EPA AirNow signal; 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
Boston: 39/100 · Somerville: 38/100
Boston is 1 points higher.
Flood
Boston: 48/100 · Somerville: 30/100
Boston is 18 points higher.
Boston: FEMA NFHL flood zones: 21 features intersect this tile.
Somerville: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Boston: 27/100 · Somerville: 27/100
No gap.
Boston: Wind exposure derived from ingested design wind / climatology tiles.
Somerville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Boston: 10/100 · Somerville: 10/100
No gap.
Boston: Lightning exposure derived from ingested climatology tiles.
Somerville: Lightning exposure derived from ingested climatology tiles.
Tornado
Boston: 15/100 · Somerville: 8/100
Boston is 7 points higher.
Boston: Tornado risk derived from NOAA SPC historical reports.
Somerville: Tornado risk derived from NOAA SPC historical reports.
Hail
Boston: 30/100 · Somerville: 58/100
Somerville is 28 points higher.
Boston: Hail risk derived from NOAA SPC historical reports.
Somerville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Boston: 98/100 · Somerville: 82/100
Boston is 16 points higher.
Boston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Somerville: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Boston: 57/100 · Somerville: 65/100
Somerville is 8 points higher.
Boston: Wildfire exposure derived from ingested fire potential tiles.
Somerville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Boston: 26/100 · Somerville: 26/100
No gap.
Boston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Somerville: Air quality signal derived from the latest EPA AirNow combined AQI grid.