City vs city
Rosemead vs South Pasadena, CA
Rosemead and South Pasadena 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
Rosemead: 21/100 · South Pasadena: 21/100
No gap.
Flood
Rosemead: 28/100 · South Pasadena: 26/100
Rosemead is 2 points higher.
Rosemead: FEMA NFHL flood zones: 6 features intersect this tile.
South Pasadena: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Rosemead: 5/100 · South Pasadena: 4/100
Rosemead is 1 points higher.
Rosemead: Wind exposure derived from ingested design wind / climatology tiles.
South Pasadena: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rosemead: 1/100 · South Pasadena: 1/100
No gap.
Rosemead: Lightning exposure derived from ingested climatology tiles.
South Pasadena: Lightning exposure derived from ingested climatology tiles.
Tornado
Rosemead: 8/100 · South Pasadena: 12/100
South Pasadena is 4 points higher.
Rosemead: Tornado risk derived from NOAA SPC historical reports.
South Pasadena: Tornado risk derived from NOAA SPC historical reports.
Hail
Rosemead: 5/100 · South Pasadena: 3/100
Rosemead is 2 points higher.
Rosemead: Hail risk derived from NOAA SPC historical reports.
South Pasadena: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rosemead: Unavailable · South Pasadena: Unavailable
A score difference cannot be calculated without both sources.
Rosemead: Storm surge model is not available for this location yet.
South Pasadena: Storm surge model is not available for this location yet.
Wildfire
Rosemead: 75/100 · South Pasadena: 76/100
South Pasadena is 1 points higher.
Rosemead: Wildfire exposure derived from ingested fire potential tiles.
South Pasadena: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Rosemead: 28/100 · South Pasadena: 27/100
Rosemead is 1 points higher.
Rosemead: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Pasadena: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.