City vs city
Grandin vs Saint Clair, MO
Saint Clair currently scores 4 points higher overall than Grandin, 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 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
Grandin: 36/100 · Saint Clair: 40/100
Saint Clair is 4 points higher.
Flood
Grandin: 5/100 · Saint Clair: 51/100
Saint Clair is 46 points higher.
Grandin: FEMA NFHL flood zones: 2 features intersect this tile.
Saint Clair: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Grandin: 15/100 · Saint Clair: 16/100
Saint Clair is 1 points higher.
Grandin: Wind exposure derived from ingested design wind / climatology tiles.
Saint Clair: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grandin: 89/100 · Saint Clair: 52/100
Grandin is 37 points higher.
Grandin: Lightning exposure derived from ingested climatology tiles.
Saint Clair: Lightning exposure derived from ingested climatology tiles.
Tornado
Grandin: 38/100 · Saint Clair: 12/100
Grandin is 26 points higher.
Grandin: Tornado risk derived from NOAA SPC historical reports.
Saint Clair: Tornado risk derived from NOAA SPC historical reports.
Hail
Grandin: 43/100 · Saint Clair: 84/100
Saint Clair is 41 points higher.
Grandin: Hail risk derived from NOAA SPC historical reports.
Saint Clair: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grandin: Unavailable · Saint Clair: Unavailable
A score difference cannot be calculated without both sources.
Grandin: Storm surge model is not available for this location yet.
Saint Clair: Storm surge model is not available for this location yet.
Wildfire
Grandin: 34/100 · Saint Clair: 41/100
Saint Clair is 7 points higher.
Grandin: Wildfire exposure derived from ingested fire potential tiles.
Saint Clair: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grandin: 27/100 · Saint Clair: 27/100
No gap.
Grandin: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Saint Clair: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.