City vs city
Charleston vs Sumner, IL
Charleston currently scores 7 points higher overall than Sumner, 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
Charleston: 39/100 · Sumner: 32/100
Charleston is 7 points higher.
Flood
Charleston: 54/100 · Sumner: 47/100
Charleston is 7 points higher.
Charleston: FEMA NFHL flood zones: 6 features intersect this tile.
Sumner: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Charleston: 15/100 · Sumner: 15/100
No gap.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Sumner: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 57/100 · Sumner: 68/100
Sumner is 11 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Sumner: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 27/100 · Sumner: 4/100
Charleston is 23 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Sumner: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 82/100 · Sumner: 42/100
Charleston is 40 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Sumner: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: Unavailable · Sumner: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge model is not available for this location yet.
Sumner: Storm surge model is not available for this location yet.
Wildfire
Charleston: 9/100 · Sumner: 15/100
Sumner is 6 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Sumner: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charleston: 31/100 · Sumner: 30/100
Charleston is 1 points higher.
Charleston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sumner: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.