City vs city
Phelan vs Rancho Cucamonga, CA
Rancho Cucamonga currently scores 8 points higher overall than Phelan, 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 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
Phelan: 23/100 · Rancho Cucamonga: 31/100
Rancho Cucamonga is 8 points higher.
Flood
Phelan: 46/100 · Rancho Cucamonga: 36/100
Phelan is 10 points higher.
Phelan: FEMA NFHL flood zones: 5 features intersect this tile.
Rancho Cucamonga: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Phelan: 5/100 · Rancho Cucamonga: 5/100
No gap.
Phelan: Wind exposure derived from ingested design wind / climatology tiles.
Rancho Cucamonga: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Phelan: 3/100 · Rancho Cucamonga: 2/100
Phelan is 1 points higher.
Phelan: Lightning exposure derived from ingested climatology tiles.
Rancho Cucamonga: Lightning exposure derived from ingested climatology tiles.
Tornado
Phelan: 4/100 · Rancho Cucamonga: 0/100
Phelan is 4 points higher.
Phelan: Tornado risk derived from NOAA SPC historical reports.
Rancho Cucamonga: Tornado risk derived from NOAA SPC historical reports.
Hail
Phelan: 3/100 · Rancho Cucamonga: 0/100
Phelan is 3 points higher.
Phelan: Hail risk derived from NOAA SPC historical reports.
Rancho Cucamonga: Hail risk derived from NOAA SPC historical reports.
Storm surge
Phelan: Unavailable · Rancho Cucamonga: Unavailable
A score difference cannot be calculated without both sources.
Phelan: Storm surge model is not available for this location yet.
Rancho Cucamonga: Storm surge model is not available for this location yet.
Wildfire
Phelan: 75/100 · Rancho Cucamonga: 81/100
Rancho Cucamonga is 6 points higher.
Phelan: Wildfire exposure derived from ingested fire potential tiles.
Rancho Cucamonga: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Phelan: 23/100 · Rancho Cucamonga: 32/100
Rancho Cucamonga is 9 points higher.
Phelan: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rancho Cucamonga: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.