City vs city
Grand Terrace vs San Diego, CA
Grand Terrace currently scores 10 points higher overall than San Diego, with the largest gap 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
Grand Terrace: 32/100 · San Diego: 22/100
Grand Terrace is 10 points higher.
Flood
Grand Terrace: 43/100 · San Diego: 39/100
Grand Terrace is 4 points higher.
Grand Terrace: FEMA NFHL flood zones: 23 features intersect this tile.
San Diego: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Grand Terrace: 5/100 · San Diego: 6/100
San Diego is 1 points higher.
Grand Terrace: Wind exposure derived from ingested design wind / climatology tiles.
San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Terrace: 2/100 · San Diego: 1/100
Grand Terrace is 1 points higher.
Grand Terrace: Lightning exposure derived from ingested climatology tiles.
San Diego: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Terrace: 0/100 · San Diego: 12/100
San Diego is 12 points higher.
Grand Terrace: Tornado risk derived from NOAA SPC historical reports.
San Diego: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Terrace: 0/100 · San Diego: 5/100
San Diego is 5 points higher.
Grand Terrace: Hail risk derived from NOAA SPC historical reports.
San Diego: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Terrace: Unavailable · San Diego: Unavailable
A score difference cannot be calculated without both sources.
Grand Terrace: Storm surge model is not available for this location yet.
San Diego: Storm surge model is not available for this location yet.
Wildfire
Grand Terrace: 76/100 · San Diego: 69/100
Grand Terrace is 7 points higher.
Grand Terrace: Wildfire exposure derived from ingested fire potential tiles.
San Diego: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Terrace: 32/100 · San Diego: 24/100
Grand Terrace is 8 points higher.
Grand Terrace: 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.