City vs city
Decatur vs Joliet, IL
Decatur currently scores 4 points higher overall than Joliet, 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 is a current EPA AirNow signal; 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
Decatur: 51/100 · Joliet: 47/100
Decatur is 4 points higher.
Flood
Decatur: 57/100 · Joliet: 44/100
Decatur is 13 points higher.
Decatur: FEMA NFHL flood zones: 11 features intersect this tile.
Joliet: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Decatur: 16/100 · Joliet: 16/100
No gap.
Decatur: Wind exposure derived from ingested design wind / climatology tiles.
Joliet: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Decatur: 54/100 · Joliet: 43/100
Decatur is 11 points higher.
Decatur: Lightning exposure derived from ingested climatology tiles.
Joliet: Lightning exposure derived from ingested climatology tiles.
Tornado
Decatur: 81/100 · Joliet: 81/100
No gap.
Decatur: Tornado risk derived from NOAA SPC historical reports.
Joliet: Tornado risk derived from NOAA SPC historical reports.
Hail
Decatur: 100/100 · Joliet: 96/100
Decatur is 4 points higher.
Decatur: Hail risk derived from NOAA SPC historical reports.
Joliet: Hail risk derived from NOAA SPC historical reports.
Storm surge
Decatur: Unavailable · Joliet: Unavailable
A score difference cannot be calculated without both sources.
Decatur: Storm surge model is not available for this location yet.
Joliet: Storm surge model is not available for this location yet.
Wildfire
Decatur: 16/100 · Joliet: 21/100
Joliet is 5 points higher.
Decatur: Wildfire exposure derived from ingested fire potential tiles.
Joliet: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Decatur: 31/100 · Joliet: 28/100
Decatur is 3 points higher.
Decatur: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Joliet: Air quality signal derived from the latest EPA AirNow combined AQI grid.