City vs city
Hull vs Rock Valley, IA
Rock Valley currently scores 15 points higher overall than Hull, with the largest gap in hail.
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
Hull: 32/100 · Rock Valley: 47/100
Rock Valley is 15 points higher.
Flood
Hull: 50/100 · Rock Valley: 67/100
Rock Valley is 17 points higher.
Hull: FEMA NFHL flood zones: 5 features intersect this tile.
Rock Valley: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Hull: 20/100 · Rock Valley: 20/100
No gap.
Hull: Wind exposure derived from ingested design wind / climatology tiles.
Rock Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hull: 51/100 · Rock Valley: 48/100
Hull is 3 points higher.
Hull: Lightning exposure derived from ingested climatology tiles.
Rock Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Hull: 8/100 · Rock Valley: 35/100
Rock Valley is 27 points higher.
Hull: Tornado risk derived from NOAA SPC historical reports.
Rock Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Hull: 37/100 · Rock Valley: 100/100
Rock Valley is 63 points higher.
Hull: Hail risk derived from NOAA SPC historical reports.
Rock Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hull: Unavailable · Rock Valley: Unavailable
A score difference cannot be calculated without both sources.
Hull: Storm surge model is not available for this location yet.
Rock Valley: Storm surge model is not available for this location yet.
Wildfire
Hull: 34/100 · Rock Valley: 39/100
Rock Valley is 5 points higher.
Hull: Wildfire exposure derived from ingested fire potential tiles.
Rock Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hull: 23/100 · Rock Valley: 22/100
Hull is 1 points higher.
Hull: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rock Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.