City vs city
Ontario vs San Jose, CA
Ontario currently scores 10 points higher overall than San Jose, with the largest gap in wildfire.
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
Ontario: 32/100 · San Jose: 22/100
Ontario is 10 points higher.
Flood
Ontario: 41/100 · San Jose: 37/100
Ontario is 4 points higher.
Ontario: FEMA NFHL flood zones: 14 features intersect this tile.
San Jose: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Ontario: 5/100 · San Jose: 2/100
Ontario is 3 points higher.
Ontario: Wind exposure derived from ingested design wind / climatology tiles.
San Jose: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ontario: 1/100 · San Jose: 0/100
Ontario is 1 points higher.
Ontario: Lightning exposure derived from ingested climatology tiles.
San Jose: Lightning exposure derived from ingested climatology tiles.
Tornado
Ontario: 0/100 · San Jose: 8/100
San Jose is 8 points higher.
Ontario: Tornado risk derived from NOAA SPC historical reports.
San Jose: Tornado risk derived from NOAA SPC historical reports.
Hail
Ontario: 0/100 · San Jose: 2/100
San Jose is 2 points higher.
Ontario: Hail risk derived from NOAA SPC historical reports.
San Jose: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ontario: Unavailable · San Jose: Unavailable
A score difference cannot be calculated without both sources.
Ontario: Storm surge model is not available for this location yet.
San Jose: Storm surge model is not available for this location yet.
Wildfire
Ontario: 80/100 · San Jose: 59/100
Ontario is 21 points higher.
Ontario: Wildfire exposure derived from ingested fire potential tiles.
San Jose: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Ontario: 31/100 · San Jose: 24/100
Ontario is 7 points higher.
Ontario: Air quality signal derived from the latest EPA AirNow combined AQI grid.
San Jose: Air quality signal derived from the latest EPA AirNow combined AQI grid.