City vs city
Groton vs North Grosvenor Dale, CT
Groton currently scores 22 points higher overall than North Grosvenor Dale, 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 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
Groton: 43/100 · North Grosvenor Dale: 21/100
Groton is 22 points higher.
Flood
Groton: 97/100 · North Grosvenor Dale: 34/100
Groton is 63 points higher.
Groton: FEMA NFHL flood zones: 19 features intersect this tile.
North Grosvenor Dale: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Groton: 35/100 · North Grosvenor Dale: 27/100
Groton is 8 points higher.
Groton: Wind exposure derived from ingested design wind / climatology tiles.
North Grosvenor Dale: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Groton: 9/100 · North Grosvenor Dale: 9/100
No gap.
Groton: Lightning exposure derived from ingested climatology tiles.
North Grosvenor Dale: Lightning exposure derived from ingested climatology tiles.
Tornado
Groton: 0/100 · North Grosvenor Dale: 0/100
No gap.
Groton: Tornado risk derived from NOAA SPC historical reports.
North Grosvenor Dale: Tornado risk derived from NOAA SPC historical reports.
Hail
Groton: 6/100 · North Grosvenor Dale: 13/100
North Grosvenor Dale is 7 points higher.
Groton: Hail risk derived from NOAA SPC historical reports.
North Grosvenor Dale: Hail risk derived from NOAA SPC historical reports.
Storm surge
Groton: 97/100 · North Grosvenor Dale: Unavailable
A score difference cannot be calculated without both sources.
Groton: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
North Grosvenor Dale: Storm surge model is not available for this location yet.
Wildfire
Groton: 27/100 · North Grosvenor Dale: 15/100
Groton is 12 points higher.
Groton: Wildfire exposure derived from ingested fire potential tiles.
North Grosvenor Dale: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Groton: 33/100 · North Grosvenor Dale: 27/100
Groton is 6 points higher.
Groton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
North Grosvenor Dale: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.