City vs city
Lionville vs Tredyffrin Township, PA
Lionville currently scores 1 points higher overall than Tredyffrin Township, 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
Lionville: 39/100 · Tredyffrin Township: 38/100
Lionville is 1 points higher.
Flood
Lionville: 62/100 · Tredyffrin Township: 60/100
Lionville is 2 points higher.
Lionville: FEMA NFHL flood zones: 4 features intersect this tile.
Tredyffrin Township: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Lionville: 22/100 · Tredyffrin Township: 22/100
No gap.
Lionville: Wind exposure derived from ingested design wind / climatology tiles.
Tredyffrin Township: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lionville: 44/100 · Tredyffrin Township: 40/100
Lionville is 4 points higher.
Lionville: Lightning exposure derived from ingested climatology tiles.
Tredyffrin Township: Lightning exposure derived from ingested climatology tiles.
Tornado
Lionville: 23/100 · Tredyffrin Township: 0/100
Lionville is 23 points higher.
Lionville: Tornado risk derived from NOAA SPC historical reports.
Tredyffrin Township: Tornado risk derived from NOAA SPC historical reports.
Hail
Lionville: 52/100 · Tredyffrin Township: 22/100
Lionville is 30 points higher.
Lionville: Hail risk derived from NOAA SPC historical reports.
Tredyffrin Township: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lionville: Unavailable · Tredyffrin Township: Unavailable
A score difference cannot be calculated without both sources.
Lionville: Storm surge model is not available for this location yet.
Tredyffrin Township: Storm surge model is not available for this location yet.
Wildfire
Lionville: 30/100 · Tredyffrin Township: 40/100
Tredyffrin Township is 10 points higher.
Lionville: Wildfire exposure derived from ingested fire potential tiles.
Tredyffrin Township: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Lionville: 40/100 · Tredyffrin Township: 41/100
Tredyffrin Township is 1 points higher.
Lionville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Tredyffrin Township: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.