City vs city
Chesnut Hill vs Harrisburg, PA
Harrisburg currently scores 8 points higher overall than Chesnut Hill, 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 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
Chesnut Hill: 42/100 · Harrisburg: 50/100
Harrisburg is 8 points higher.
Flood
Chesnut Hill: 76/100 · Harrisburg: 98/100
Harrisburg is 22 points higher.
Chesnut Hill: FEMA NFHL flood zones: 9 features intersect this tile.
Harrisburg: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Chesnut Hill: 21/100 · Harrisburg: 20/100
Chesnut Hill is 1 points higher.
Chesnut Hill: Wind exposure derived from ingested design wind / climatology tiles.
Harrisburg: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chesnut Hill: 25/100 · Harrisburg: 38/100
Harrisburg is 13 points higher.
Chesnut Hill: Lightning exposure derived from ingested climatology tiles.
Harrisburg: Lightning exposure derived from ingested climatology tiles.
Tornado
Chesnut Hill: 0/100 · Harrisburg: 38/100
Harrisburg is 38 points higher.
Chesnut Hill: Tornado risk derived from NOAA SPC historical reports.
Harrisburg: Tornado risk derived from NOAA SPC historical reports.
Hail
Chesnut Hill: 38/100 · Harrisburg: 72/100
Harrisburg is 34 points higher.
Chesnut Hill: Hail risk derived from NOAA SPC historical reports.
Harrisburg: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chesnut Hill: Unavailable · Harrisburg: Unavailable
A score difference cannot be calculated without both sources.
Chesnut Hill: Storm surge model is not available for this location yet.
Harrisburg: Storm surge model is not available for this location yet.
Wildfire
Chesnut Hill: 55/100 · Harrisburg: 43/100
Chesnut Hill is 12 points higher.
Chesnut Hill: Wildfire exposure derived from ingested fire potential tiles.
Harrisburg: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Chesnut Hill: 37/100 · Harrisburg: 40/100
Harrisburg is 3 points higher.
Chesnut Hill: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Harrisburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.