City vs city
Groton vs Hartford, CT
Groton currently scores 2 points higher overall than Hartford, 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 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 · Hartford: 41/100
Groton is 2 points higher.
Flood
Groton: 97/100 · Hartford: 86/100
Groton is 11 points higher.
Groton: FEMA NFHL flood zones: 19 features intersect this tile.
Hartford: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Groton: 35/100 · Hartford: 25/100
Groton is 10 points higher.
Groton: Wind exposure derived from ingested design wind / climatology tiles.
Hartford: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Groton: 9/100 · Hartford: 12/100
Hartford is 3 points higher.
Groton: Lightning exposure derived from ingested climatology tiles.
Hartford: Lightning exposure derived from ingested climatology tiles.
Tornado
Groton: 0/100 · Hartford: 27/100
Hartford is 27 points higher.
Groton: Tornado risk derived from NOAA SPC historical reports.
Hartford: Tornado risk derived from NOAA SPC historical reports.
Hail
Groton: 6/100 · Hartford: 47/100
Hartford is 41 points higher.
Groton: Hail risk derived from NOAA SPC historical reports.
Hartford: Hail risk derived from NOAA SPC historical reports.
Storm surge
Groton: 97/100 · Hartford: Unavailable
A score difference cannot be calculated without both sources.
Groton: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Hartford: Storm surge model is not available for this location yet.
Wildfire
Groton: 27/100 · Hartford: 62/100
Hartford is 35 points higher.
Groton: Wildfire exposure derived from ingested fire potential tiles.
Hartford: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Groton: 33/100 · Hartford: 28/100
Groton is 5 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.
Hartford: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.