City vs city
Fontana vs San Diego, CA
San Diego currently scores 10 points higher overall than Fontana, 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 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
Fontana: 30/100 · San Diego: 40/100
San Diego is 10 points higher.
Flood
Fontana: 26/100 · San Diego: 100/100
San Diego is 74 points higher.
Fontana: FEMA NFHL flood zones: 9 features intersect this tile.
San Diego: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Fontana: 5/100 · San Diego: 5/100
No gap.
Fontana: Wind exposure derived from ingested design wind / climatology tiles.
San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fontana: 2/100 · San Diego: 0/100
Fontana is 2 points higher.
Fontana: Lightning exposure derived from ingested climatology tiles.
San Diego: Lightning exposure derived from ingested climatology tiles.
Tornado
Fontana: 0/100 · San Diego: 0/100
No gap.
Fontana: Tornado risk derived from NOAA SPC historical reports.
San Diego: Tornado risk derived from NOAA SPC historical reports.
Hail
Fontana: 0/100 · San Diego: 1/100
San Diego is 1 points higher.
Fontana: Hail risk derived from NOAA SPC historical reports.
San Diego: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fontana: Unavailable · San Diego: Unavailable
A score difference cannot be calculated without both sources.
Fontana: Storm surge model is not available for this location yet.
San Diego: Storm surge model is not available for this location yet.
Wildfire
Fontana: 85/100 · San Diego: 69/100
Fontana is 16 points higher.
Fontana: Wildfire exposure derived from ingested fire potential tiles.
San Diego: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Fontana: 32/100 · San Diego: 24/100
Fontana is 8 points higher.
Fontana: Air quality signal derived from the latest EPA AirNow combined AQI grid.
San Diego: Air quality signal derived from the latest EPA AirNow combined AQI grid.