City vs city
Dayton vs Harrison, OH
Dayton currently scores 5 points higher overall than Harrison, 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
Dayton: 45/100 · Harrison: 40/100
Dayton is 5 points higher.
Flood
Dayton: 74/100 · Harrison: 89/100
Harrison is 15 points higher.
Dayton: FEMA NFHL flood zones: 9 features intersect this tile.
Harrison: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Dayton: 15/100 · Harrison: 15/100
No gap.
Dayton: Wind exposure derived from ingested design wind / climatology tiles.
Harrison: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dayton: 35/100 · Harrison: 55/100
Harrison is 20 points higher.
Dayton: Lightning exposure derived from ingested climatology tiles.
Harrison: Lightning exposure derived from ingested climatology tiles.
Tornado
Dayton: 46/100 · Harrison: 0/100
Dayton is 46 points higher.
Dayton: Tornado risk derived from NOAA SPC historical reports.
Harrison: Tornado risk derived from NOAA SPC historical reports.
Hail
Dayton: 100/100 · Harrison: 46/100
Dayton is 54 points higher.
Dayton: Hail risk derived from NOAA SPC historical reports.
Harrison: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dayton: Unavailable · Harrison: Unavailable
A score difference cannot be calculated without both sources.
Dayton: Storm surge model is not available for this location yet.
Harrison: Storm surge model is not available for this location yet.
Wildfire
Dayton: 7/100 · Harrison: 1/100
Dayton is 6 points higher.
Dayton: Wildfire exposure derived from ingested fire potential tiles.
Harrison: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Dayton: 35/100 · Harrison: 31/100
Dayton is 4 points higher.
Dayton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Harrison: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.