City vs city
Perris vs San Diego, CA
Perris and San Diego are tied on overall score, with the biggest factor difference 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 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
Perris: 24/100 · San Diego: 24/100
No gap.
Flood
Perris: 38/100 · San Diego: 28/100
Perris is 10 points higher.
Perris: FEMA NFHL flood zones: 10 features intersect this tile.
San Diego: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Perris: 5/100 · San Diego: 5/100
No gap.
Perris: Wind exposure derived from ingested design wind / climatology tiles.
San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Perris: 2/100 · San Diego: 1/100
Perris is 1 points higher.
Perris: Lightning exposure derived from ingested climatology tiles.
San Diego: Lightning exposure derived from ingested climatology tiles.
Tornado
Perris: 12/100 · San Diego: 0/100
Perris is 12 points higher.
Perris: Tornado risk derived from NOAA SPC historical reports.
San Diego: Tornado risk derived from NOAA SPC historical reports.
Hail
Perris: 3/100 · San Diego: 1/100
Perris is 2 points higher.
Perris: Hail risk derived from NOAA SPC historical reports.
San Diego: Hail risk derived from NOAA SPC historical reports.
Storm surge
Perris: Unavailable · San Diego: Unavailable
A score difference cannot be calculated without both sources.
Perris: Storm surge model is not available for this location yet.
San Diego: Storm surge model is not available for this location yet.
Wildfire
Perris: 83/100 · San Diego: 82/100
Perris is 1 points higher.
Perris: Wildfire exposure derived from ingested fire potential tiles.
San Diego: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Perris: 27/100 · San Diego: 24/100
Perris is 3 points higher.
Perris: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
San Diego: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.