City vs city
Derby vs Plymouth, CT
Derby currently scores 2 points higher overall than Plymouth, with the largest gap in tornado.
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
Derby: 36/100 · Plymouth: 34/100
Derby is 2 points higher.
Flood
Derby: 55/100 · Plymouth: 44/100
Derby is 11 points higher.
Derby: FEMA NFHL flood zones: 11 features intersect this tile.
Plymouth: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Derby: 26/100 · Plymouth: 25/100
Derby is 1 points higher.
Derby: Wind exposure derived from ingested design wind / climatology tiles.
Plymouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Derby: 14/100 · Plymouth: 13/100
Derby is 1 points higher.
Derby: Lightning exposure derived from ingested climatology tiles.
Plymouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Derby: 0/100 · Plymouth: 27/100
Plymouth is 27 points higher.
Derby: Tornado risk derived from NOAA SPC historical reports.
Plymouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Derby: 19/100 · Plymouth: 38/100
Plymouth is 19 points higher.
Derby: Hail risk derived from NOAA SPC historical reports.
Plymouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Derby: Unavailable · Plymouth: Unavailable
A score difference cannot be calculated without both sources.
Derby: Storm surge model is not available for this location yet.
Plymouth: Storm surge model is not available for this location yet.
Wildfire
Derby: 61/100 · Plymouth: 61/100
No gap.
Derby: Wildfire exposure derived from ingested fire potential tiles.
Plymouth: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Derby: 43/100 · Plymouth: 28/100
Derby is 15 points higher.
Derby: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Plymouth: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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