City vs city
Aurora vs Decatur, IL
Decatur currently scores 9 points higher overall than Aurora, 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 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
Aurora: 42/100 · Decatur: 51/100
Decatur is 9 points higher.
Flood
Aurora: 43/100 · Decatur: 57/100
Decatur is 14 points higher.
Aurora: FEMA NFHL flood zones: 15 features intersect this tile.
Decatur: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Aurora: 16/100 · Decatur: 16/100
No gap.
Aurora: Wind exposure derived from ingested design wind / climatology tiles.
Decatur: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Aurora: 44/100 · Decatur: 54/100
Decatur is 10 points higher.
Aurora: Lightning exposure derived from ingested climatology tiles.
Decatur: Lightning exposure derived from ingested climatology tiles.
Tornado
Aurora: 42/100 · Decatur: 81/100
Decatur is 39 points higher.
Aurora: Tornado risk derived from NOAA SPC historical reports.
Decatur: Tornado risk derived from NOAA SPC historical reports.
Hail
Aurora: 100/100 · Decatur: 100/100
No gap.
Aurora: Hail risk derived from NOAA SPC historical reports.
Decatur: Hail risk derived from NOAA SPC historical reports.
Storm surge
Aurora: Unavailable · Decatur: Unavailable
A score difference cannot be calculated without both sources.
Aurora: Storm surge model is not available for this location yet.
Decatur: Storm surge model is not available for this location yet.
Wildfire
Aurora: 21/100 · Decatur: 16/100
Aurora is 5 points higher.
Aurora: Wildfire exposure derived from ingested fire potential tiles.
Decatur: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Aurora: 29/100 · Decatur: 31/100
Decatur is 2 points higher.
Aurora: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Decatur: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.