City vs city
Carlyle vs O'Fallon, IL
O'Fallon currently scores 8 points higher overall than Carlyle, 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 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
Carlyle: 32/100 · O'Fallon: 40/100
O'Fallon is 8 points higher.
Flood
Carlyle: 73/100 · O'Fallon: Unavailable
A score difference cannot be calculated without both sources.
Carlyle: FEMA NFHL flood zones: 5 features intersect this tile.
O'Fallon: Flood model is not available for this location yet.
Wind
Carlyle: 16/100 · O'Fallon: 16/100
No gap.
Carlyle: Wind exposure derived from ingested design wind / climatology tiles.
O'Fallon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Carlyle: 45/100 · O'Fallon: 35/100
Carlyle is 10 points higher.
Carlyle: Lightning exposure derived from ingested climatology tiles.
O'Fallon: Lightning exposure derived from ingested climatology tiles.
Tornado
Carlyle: 4/100 · O'Fallon: 73/100
O'Fallon is 69 points higher.
Carlyle: Tornado risk derived from NOAA SPC historical reports.
O'Fallon: Tornado risk derived from NOAA SPC historical reports.
Hail
Carlyle: 37/100 · O'Fallon: 100/100
O'Fallon is 63 points higher.
Carlyle: Hail risk derived from NOAA SPC historical reports.
O'Fallon: Hail risk derived from NOAA SPC historical reports.
Storm surge
Carlyle: Unavailable · O'Fallon: Unavailable
A score difference cannot be calculated without both sources.
Carlyle: Storm surge model is not available for this location yet.
O'Fallon: Storm surge model is not available for this location yet.
Wildfire
Carlyle: 21/100 · O'Fallon: 30/100
O'Fallon is 9 points higher.
Carlyle: Wildfire exposure derived from ingested fire potential tiles.
O'Fallon: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Carlyle: 28/100 · O'Fallon: 29/100
O'Fallon is 1 points higher.
Carlyle: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
O'Fallon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.