City vs city
Rosemead vs Sierra Madre, CA
Sierra Madre currently scores 1 points higher overall than Rosemead, 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
Rosemead: 21/100 · Sierra Madre: 22/100
Sierra Madre is 1 points higher.
Flood
Rosemead: 28/100 · Sierra Madre: 26/100
Rosemead is 2 points higher.
Rosemead: FEMA NFHL flood zones: 6 features intersect this tile.
Sierra Madre: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Rosemead: 5/100 · Sierra Madre: 5/100
No gap.
Rosemead: Wind exposure derived from ingested design wind / climatology tiles.
Sierra Madre: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rosemead: 1/100 · Sierra Madre: 1/100
No gap.
Rosemead: Lightning exposure derived from ingested climatology tiles.
Sierra Madre: Lightning exposure derived from ingested climatology tiles.
Tornado
Rosemead: 8/100 · Sierra Madre: 0/100
Rosemead is 8 points higher.
Rosemead: Tornado risk derived from NOAA SPC historical reports.
Sierra Madre: Tornado risk derived from NOAA SPC historical reports.
Hail
Rosemead: 5/100 · Sierra Madre: 7/100
Sierra Madre is 2 points higher.
Rosemead: Hail risk derived from NOAA SPC historical reports.
Sierra Madre: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rosemead: Unavailable · Sierra Madre: Unavailable
A score difference cannot be calculated without both sources.
Rosemead: Storm surge model is not available for this location yet.
Sierra Madre: Storm surge model is not available for this location yet.
Wildfire
Rosemead: 75/100 · Sierra Madre: 68/100
Rosemead is 7 points higher.
Rosemead: Wildfire exposure derived from ingested fire potential tiles.
Sierra Madre: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Rosemead: 28/100 · Sierra Madre: 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.
Sierra Madre: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.