City vs city
Charleston vs Saint Clair, MO
Saint Clair currently scores 13 points higher overall than Charleston, with the largest gap 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
Charleston: 27/100 · Saint Clair: 40/100
Saint Clair is 13 points higher.
Flood
Charleston: 3/100 · Saint Clair: 51/100
Saint Clair is 48 points higher.
Charleston: FEMA NFHL flood zones: 2 features intersect this tile.
Saint Clair: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Charleston: 15/100 · Saint Clair: 16/100
Saint Clair is 1 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Saint Clair: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 50/100 · Saint Clair: 52/100
Saint Clair is 2 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Saint Clair: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 23/100 · Saint Clair: 12/100
Charleston is 11 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Saint Clair: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 44/100 · Saint Clair: 84/100
Saint Clair is 40 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Saint Clair: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: Unavailable · Saint Clair: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge model is not available for this location yet.
Saint Clair: Storm surge model is not available for this location yet.
Wildfire
Charleston: 30/100 · Saint Clair: 41/100
Saint Clair is 11 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Saint Clair: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Charleston: 23/100 · Saint Clair: 27/100
Saint Clair is 4 points higher.
Charleston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Saint Clair: Air quality signal derived from the latest EPA AirNow combined AQI grid.