City vs city
Aurora vs Chatham, IL
Aurora currently scores 1 points higher overall than Chatham, 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 · Chatham: 41/100
Aurora is 1 points higher.
Flood
Aurora: 43/100 · Chatham: 39/100
Aurora is 4 points higher.
Aurora: FEMA NFHL flood zones: 15 features intersect this tile.
Chatham: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Aurora: 16/100 · Chatham: 16/100
No gap.
Aurora: Wind exposure derived from ingested design wind / climatology tiles.
Chatham: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Aurora: 44/100 · Chatham: 63/100
Chatham is 19 points higher.
Aurora: Lightning exposure derived from ingested climatology tiles.
Chatham: Lightning exposure derived from ingested climatology tiles.
Tornado
Aurora: 42/100 · Chatham: 15/100
Aurora is 27 points higher.
Aurora: Tornado risk derived from NOAA SPC historical reports.
Chatham: Tornado risk derived from NOAA SPC historical reports.
Hail
Aurora: 100/100 · Chatham: 100/100
No gap.
Aurora: Hail risk derived from NOAA SPC historical reports.
Chatham: Hail risk derived from NOAA SPC historical reports.
Storm surge
Aurora: Unavailable · Chatham: Unavailable
A score difference cannot be calculated without both sources.
Aurora: Storm surge model is not available for this location yet.
Chatham: Storm surge model is not available for this location yet.
Wildfire
Aurora: 21/100 · Chatham: 23/100
Chatham is 2 points higher.
Aurora: Wildfire exposure derived from ingested fire potential tiles.
Chatham: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Aurora: 29/100 · Chatham: 28/100
Aurora is 1 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.
Chatham: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.