City vs city
Joliet vs Petersburg, IL
Joliet currently scores 6 points higher overall than Petersburg, 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 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
Joliet: 47/100 · Petersburg: 41/100
Joliet is 6 points higher.
Flood
Joliet: 44/100 · Petersburg: 54/100
Petersburg is 10 points higher.
Joliet: FEMA NFHL flood zones: 13 features intersect this tile.
Petersburg: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Joliet: 16/100 · Petersburg: 16/100
No gap.
Joliet: Wind exposure derived from ingested design wind / climatology tiles.
Petersburg: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Joliet: 43/100 · Petersburg: 61/100
Petersburg is 18 points higher.
Joliet: Lightning exposure derived from ingested climatology tiles.
Petersburg: Lightning exposure derived from ingested climatology tiles.
Tornado
Joliet: 81/100 · Petersburg: 4/100
Joliet is 77 points higher.
Joliet: Tornado risk derived from NOAA SPC historical reports.
Petersburg: Tornado risk derived from NOAA SPC historical reports.
Hail
Joliet: 96/100 · Petersburg: 91/100
Joliet is 5 points higher.
Joliet: Hail risk derived from NOAA SPC historical reports.
Petersburg: Hail risk derived from NOAA SPC historical reports.
Storm surge
Joliet: Unavailable · Petersburg: Unavailable
A score difference cannot be calculated without both sources.
Joliet: Storm surge model is not available for this location yet.
Petersburg: Storm surge model is not available for this location yet.
Wildfire
Joliet: 21/100 · Petersburg: 30/100
Petersburg is 9 points higher.
Joliet: Wildfire exposure derived from ingested fire potential tiles.
Petersburg: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Joliet: 28/100 · Petersburg: 28/100
No gap.
Joliet: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Petersburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.