City vs city
Rochester vs Somersworth, NH
Somersworth currently scores 8 points higher overall than Rochester, 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
Rochester: 32/100 · Somersworth: 40/100
Somersworth is 8 points higher.
Flood
Rochester: 64/100 · Somersworth: 30/100
Rochester is 34 points higher.
Rochester: FEMA NFHL flood zones: 12 features intersect this tile.
Somersworth: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Rochester: 21/100 · Somersworth: 21/100
No gap.
Rochester: Wind exposure derived from ingested design wind / climatology tiles.
Somersworth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rochester: 7/100 · Somersworth: 6/100
Rochester is 1 points higher.
Rochester: Lightning exposure derived from ingested climatology tiles.
Somersworth: Lightning exposure derived from ingested climatology tiles.
Tornado
Rochester: 15/100 · Somersworth: 8/100
Rochester is 7 points higher.
Rochester: Tornado risk derived from NOAA SPC historical reports.
Somersworth: Tornado risk derived from NOAA SPC historical reports.
Hail
Rochester: 61/100 · Somersworth: 100/100
Somersworth is 39 points higher.
Rochester: Hail risk derived from NOAA SPC historical reports.
Somersworth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rochester: Unavailable · Somersworth: 97/100
A score difference cannot be calculated without both sources.
Rochester: Storm surge model is not available for this location yet.
Somersworth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Rochester: 36/100 · Somersworth: 36/100
No gap.
Rochester: Wildfire exposure derived from ingested fire potential tiles.
Somersworth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Rochester: 23/100 · Somersworth: 23/100
No gap.
Rochester: 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.