City vs city
O'Fallon vs Wentzville, MO
O'Fallon currently scores 5 points higher overall than Wentzville, 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
O'Fallon: 46/100 · Wentzville: 41/100
O'Fallon is 5 points higher.
Flood
O'Fallon: 44/100 · Wentzville: 45/100
Wentzville is 1 points higher.
O'Fallon: FEMA NFHL flood zones: 6 features intersect this tile.
Wentzville: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
O'Fallon: 16/100 · Wentzville: 16/100
No gap.
O'Fallon: Wind exposure derived from ingested design wind / climatology tiles.
Wentzville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
O'Fallon: 46/100 · Wentzville: 45/100
O'Fallon is 1 points higher.
O'Fallon: Lightning exposure derived from ingested climatology tiles.
Wentzville: Lightning exposure derived from ingested climatology tiles.
Tornado
O'Fallon: 50/100 · Wentzville: 23/100
O'Fallon is 27 points higher.
O'Fallon: Tornado risk derived from NOAA SPC historical reports.
Wentzville: Tornado risk derived from NOAA SPC historical reports.
Hail
O'Fallon: 100/100 · Wentzville: 100/100
No gap.
O'Fallon: Hail risk derived from NOAA SPC historical reports.
Wentzville: Hail risk derived from NOAA SPC historical reports.
Storm surge
O'Fallon: Unavailable · Wentzville: Unavailable
A score difference cannot be calculated without both sources.
O'Fallon: Storm surge model is not available for this location yet.
Wentzville: Storm surge model is not available for this location yet.
Wildfire
O'Fallon: 41/100 · Wentzville: 31/100
O'Fallon is 10 points higher.
O'Fallon: Wildfire exposure derived from ingested fire potential tiles.
Wentzville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
O'Fallon: 28/100 · Wentzville: 28/100
No gap.
O'Fallon: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Wentzville: Air quality signal derived from the latest EPA AirNow combined AQI grid.