City vs city
Mount Vernon vs Sumner, IL
Sumner currently scores 3 points higher overall than Mount Vernon, with the largest gap in lightning.
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
Mount Vernon: 29/100 · Sumner: 32/100
Sumner is 3 points higher.
Flood
Mount Vernon: 47/100 · Sumner: 47/100
No gap.
Mount Vernon: FEMA NFHL flood zones: 4 features intersect this tile.
Sumner: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Mount Vernon: 15/100 · Sumner: 15/100
No gap.
Mount Vernon: Wind exposure derived from ingested design wind / climatology tiles.
Sumner: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Vernon: 46/100 · Sumner: 68/100
Sumner is 22 points higher.
Mount Vernon: Lightning exposure derived from ingested climatology tiles.
Sumner: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Vernon: 15/100 · Sumner: 4/100
Mount Vernon is 11 points higher.
Mount Vernon: Tornado risk derived from NOAA SPC historical reports.
Sumner: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Vernon: 29/100 · Sumner: 42/100
Sumner is 13 points higher.
Mount Vernon: Hail risk derived from NOAA SPC historical reports.
Sumner: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Vernon: Unavailable · Sumner: Unavailable
A score difference cannot be calculated without both sources.
Mount Vernon: Storm surge model is not available for this location yet.
Sumner: Storm surge model is not available for this location yet.
Wildfire
Mount Vernon: 19/100 · Sumner: 15/100
Mount Vernon is 4 points higher.
Mount Vernon: Wildfire exposure derived from ingested fire potential tiles.
Sumner: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Vernon: 30/100 · Sumner: 30/100
No gap.
Mount Vernon: 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.