City vs city
Cortland vs Joliet, IL
Joliet currently scores 16 points higher overall than Cortland, 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
Cortland: 31/100 · Joliet: 47/100
Joliet is 16 points higher.
Flood
Cortland: 50/100 · Joliet: 44/100
Cortland is 6 points higher.
Cortland: FEMA NFHL flood zones: 8 features intersect this tile.
Joliet: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Cortland: 16/100 · Joliet: 16/100
No gap.
Cortland: Wind exposure derived from ingested design wind / climatology tiles.
Joliet: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Cortland: 54/100 · Joliet: 43/100
Cortland is 11 points higher.
Cortland: Lightning exposure derived from ingested climatology tiles.
Joliet: Lightning exposure derived from ingested climatology tiles.
Tornado
Cortland: 19/100 · Joliet: 81/100
Joliet is 62 points higher.
Cortland: Tornado risk derived from NOAA SPC historical reports.
Joliet: Tornado risk derived from NOAA SPC historical reports.
Hail
Cortland: 37/100 · Joliet: 96/100
Joliet is 59 points higher.
Cortland: Hail risk derived from NOAA SPC historical reports.
Joliet: Hail risk derived from NOAA SPC historical reports.
Storm surge
Cortland: Unavailable · Joliet: Unavailable
A score difference cannot be calculated without both sources.
Cortland: Storm surge model is not available for this location yet.
Joliet: Storm surge model is not available for this location yet.
Wildfire
Cortland: 13/100 · Joliet: 21/100
Joliet is 8 points higher.
Cortland: Wildfire exposure derived from ingested fire potential tiles.
Joliet: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Cortland: 28/100 · Joliet: 28/100
No gap.
Cortland: 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.