City vs city
Nashua vs Somersworth, NH
Somersworth currently scores 6 points higher overall than Nashua, 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
Nashua: 34/100 · Somersworth: 40/100
Somersworth is 6 points higher.
Flood
Nashua: 77/100 · Somersworth: 30/100
Nashua is 47 points higher.
Nashua: FEMA NFHL flood zones: 26 features intersect this tile.
Somersworth: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Nashua: 23/100 · Somersworth: 21/100
Nashua is 2 points higher.
Nashua: Wind exposure derived from ingested design wind / climatology tiles.
Somersworth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nashua: 7/100 · Somersworth: 6/100
Nashua is 1 points higher.
Nashua: Lightning exposure derived from ingested climatology tiles.
Somersworth: Lightning exposure derived from ingested climatology tiles.
Tornado
Nashua: 15/100 · Somersworth: 8/100
Nashua is 7 points higher.
Nashua: Tornado risk derived from NOAA SPC historical reports.
Somersworth: Tornado risk derived from NOAA SPC historical reports.
Hail
Nashua: 51/100 · Somersworth: 100/100
Somersworth is 49 points higher.
Nashua: Hail risk derived from NOAA SPC historical reports.
Somersworth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nashua: Unavailable · Somersworth: 97/100
A score difference cannot be calculated without both sources.
Nashua: Storm surge model is not available for this location yet.
Somersworth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Nashua: 42/100 · Somersworth: 36/100
Nashua is 6 points higher.
Nashua: Wildfire exposure derived from ingested fire potential tiles.
Somersworth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Nashua: 21/100 · Somersworth: 23/100
Somersworth is 2 points higher.
Nashua: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Somersworth: Air quality signal derived from the latest EPA AirNow combined AQI grid.