City vs city
Canonsburg vs Castle Shannon, PA
Canonsburg and Castle Shannon are tied on overall score, with the biggest factor difference 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 is a current EPA AirNow signal; 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
Canonsburg: 35/100 · Castle Shannon: 35/100
No gap.
Flood
Canonsburg: 68/100 · Castle Shannon: 60/100
Canonsburg is 8 points higher.
Canonsburg: FEMA NFHL flood zones: 3 features intersect this tile.
Castle Shannon: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Canonsburg: 18/100 · Castle Shannon: 18/100
No gap.
Canonsburg: Wind exposure derived from ingested design wind / climatology tiles.
Castle Shannon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Canonsburg: 21/100 · Castle Shannon: 23/100
Castle Shannon is 2 points higher.
Canonsburg: Lightning exposure derived from ingested climatology tiles.
Castle Shannon: Lightning exposure derived from ingested climatology tiles.
Tornado
Canonsburg: 4/100 · Castle Shannon: 8/100
Castle Shannon is 4 points higher.
Canonsburg: Tornado risk derived from NOAA SPC historical reports.
Castle Shannon: Tornado risk derived from NOAA SPC historical reports.
Hail
Canonsburg: 66/100 · Castle Shannon: 64/100
Canonsburg is 2 points higher.
Canonsburg: Hail risk derived from NOAA SPC historical reports.
Castle Shannon: Hail risk derived from NOAA SPC historical reports.
Storm surge
Canonsburg: Unavailable · Castle Shannon: Unavailable
A score difference cannot be calculated without both sources.
Canonsburg: Storm surge model is not available for this location yet.
Castle Shannon: Storm surge model is not available for this location yet.
Wildfire
Canonsburg: 32/100 · Castle Shannon: 34/100
Castle Shannon is 2 points higher.
Canonsburg: Wildfire exposure derived from ingested fire potential tiles.
Castle Shannon: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Canonsburg: 37/100 · Castle Shannon: 39/100
Castle Shannon is 2 points higher.
Canonsburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Castle Shannon: Air quality signal derived from the latest EPA AirNow combined AQI grid.