City vs city
Chicago vs Petersburg, IL
Petersburg currently scores 1 points higher overall than Chicago, 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 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
Chicago: 40/100 · Petersburg: 41/100
Petersburg is 1 points higher.
Flood
Chicago: 44/100 · Petersburg: 54/100
Petersburg is 10 points higher.
Chicago: FEMA NFHL flood zones: 10 features intersect this tile.
Petersburg: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Chicago: 16/100 · Petersburg: 16/100
No gap.
Chicago: Wind exposure derived from ingested design wind / climatology tiles.
Petersburg: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chicago: 35/100 · Petersburg: 61/100
Petersburg is 26 points higher.
Chicago: Lightning exposure derived from ingested climatology tiles.
Petersburg: Lightning exposure derived from ingested climatology tiles.
Tornado
Chicago: 27/100 · Petersburg: 4/100
Chicago is 23 points higher.
Chicago: Tornado risk derived from NOAA SPC historical reports.
Petersburg: Tornado risk derived from NOAA SPC historical reports.
Hail
Chicago: 100/100 · Petersburg: 91/100
Chicago is 9 points higher.
Chicago: Hail risk derived from NOAA SPC historical reports.
Petersburg: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chicago: Unavailable · Petersburg: Unavailable
A score difference cannot be calculated without both sources.
Chicago: Storm surge model is not available for this location yet.
Petersburg: Storm surge model is not available for this location yet.
Wildfire
Chicago: 27/100 · Petersburg: 30/100
Petersburg is 3 points higher.
Chicago: Wildfire exposure derived from ingested fire potential tiles.
Petersburg: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Chicago: 28/100 · Petersburg: 28/100
No gap.
Chicago: 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.