City vs city
Nashua vs North Walpole, NH
Nashua currently scores 7 points higher overall than North Walpole, 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 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 · North Walpole: 27/100
Nashua is 7 points higher.
Flood
Nashua: 77/100 · North Walpole: 43/100
Nashua is 34 points higher.
Nashua: FEMA NFHL flood zones: 26 features intersect this tile.
North Walpole: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Nashua: 23/100 · North Walpole: 18/100
Nashua is 5 points higher.
Nashua: Wind exposure derived from ingested design wind / climatology tiles.
North Walpole: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nashua: 7/100 · North Walpole: 20/100
North Walpole is 13 points higher.
Nashua: Lightning exposure derived from ingested climatology tiles.
North Walpole: Lightning exposure derived from ingested climatology tiles.
Tornado
Nashua: 15/100 · North Walpole: 8/100
Nashua is 7 points higher.
Nashua: Tornado risk derived from NOAA SPC historical reports.
North Walpole: Tornado risk derived from NOAA SPC historical reports.
Hail
Nashua: 51/100 · North Walpole: 42/100
Nashua is 9 points higher.
Nashua: Hail risk derived from NOAA SPC historical reports.
North Walpole: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nashua: Unavailable · North Walpole: Unavailable
A score difference cannot be calculated without both sources.
Nashua: Storm surge model is not available for this location yet.
North Walpole: Storm surge model is not available for this location yet.
Wildfire
Nashua: 42/100 · North Walpole: 34/100
Nashua is 8 points higher.
Nashua: Wildfire exposure derived from ingested fire potential tiles.
North Walpole: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Nashua: 21/100 · North Walpole: 22/100
North Walpole is 1 points higher.
Nashua: Air quality signal derived from the latest EPA AirNow combined AQI grid.
North Walpole: Air quality signal derived from the latest EPA AirNow combined AQI grid.