City vs city
Grand Terrace vs Rialto, CA
Grand Terrace currently scores 9 points higher overall than Rialto, with the largest gap in ingested air quality.
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 · Rialto: 23/100
Grand Terrace is 9 points higher.
Flood
Grand Terrace: 43/100 · Rialto: 44/100
Rialto is 1 points higher.
Grand Terrace: FEMA NFHL flood zones: 23 features intersect this tile.
Rialto: FEMA NFHL flood zones: 23 features intersect this tile.
Wind
Grand Terrace: 5/100 · Rialto: 5/100
No gap.
Grand Terrace: Wind exposure derived from ingested design wind / climatology tiles.
Rialto: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Terrace: 2/100 · Rialto: 2/100
No gap.
Grand Terrace: Lightning exposure derived from ingested climatology tiles.
Rialto: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Terrace: 0/100 · Rialto: 4/100
Rialto is 4 points higher.
Grand Terrace: Tornado risk derived from NOAA SPC historical reports.
Rialto: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Terrace: 0/100 · Rialto: 1/100
Rialto is 1 points higher.
Grand Terrace: Hail risk derived from NOAA SPC historical reports.
Rialto: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Terrace: Unavailable · Rialto: Unavailable
A score difference cannot be calculated without both sources.
Grand Terrace: Storm surge model is not available for this location yet.
Rialto: Storm surge model is not available for this location yet.
Wildfire
Grand Terrace: 76/100 · Rialto: 78/100
Rialto is 2 points higher.
Grand Terrace: Wildfire exposure derived from ingested fire potential tiles.
Rialto: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Terrace: 32/100 · Rialto: 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.
Rialto: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.