City vs city
Cheyney vs Darby, PA
Darby currently scores 4 points higher overall than Cheyney, with the largest gap in wildfire.
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
Cheyney: 36/100 · Darby: 40/100
Darby is 4 points higher.
Flood
Cheyney: 64/100 · Darby: 83/100
Darby is 19 points higher.
Cheyney: FEMA NFHL flood zones: 6 features intersect this tile.
Darby: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Cheyney: 22/100 · Darby: 22/100
No gap.
Cheyney: Wind exposure derived from ingested design wind / climatology tiles.
Darby: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Cheyney: 42/100 · Darby: 37/100
Cheyney is 5 points higher.
Cheyney: Lightning exposure derived from ingested climatology tiles.
Darby: Lightning exposure derived from ingested climatology tiles.
Tornado
Cheyney: 19/100 · Darby: 8/100
Cheyney is 11 points higher.
Cheyney: Tornado risk derived from NOAA SPC historical reports.
Darby: Tornado risk derived from NOAA SPC historical reports.
Hail
Cheyney: 23/100 · Darby: 43/100
Darby is 20 points higher.
Cheyney: Hail risk derived from NOAA SPC historical reports.
Darby: Hail risk derived from NOAA SPC historical reports.
Storm surge
Cheyney: Unavailable · Darby: 67/100
A score difference cannot be calculated without both sources.
Cheyney: Storm surge model is not available for this location yet.
Darby: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Cheyney: 43/100 · Darby: 15/100
Cheyney is 28 points higher.
Cheyney: Wildfire exposure derived from ingested fire potential tiles.
Darby: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Cheyney: 41/100 · Darby: 44/100
Darby is 3 points higher.
Cheyney: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Darby: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.