City vs city
Holly vs Thornton, CO
Holly currently scores 7 points higher overall than Thornton, 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 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
Holly: 55/100 · Thornton: 48/100
Holly is 7 points higher.
Flood
Holly: 67/100 · Thornton: 54/100
Holly is 13 points higher.
Holly: FEMA NFHL flood zones: 9 features intersect this tile.
Thornton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Holly: 18/100 · Thornton: 15/100
Holly is 3 points higher.
Holly: Wind exposure derived from ingested design wind / climatology tiles.
Thornton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Holly: 42/100 · Thornton: 32/100
Holly is 10 points higher.
Holly: Lightning exposure derived from ingested climatology tiles.
Thornton: Lightning exposure derived from ingested climatology tiles.
Tornado
Holly: 65/100 · Thornton: 27/100
Holly is 38 points higher.
Holly: Tornado risk derived from NOAA SPC historical reports.
Thornton: Tornado risk derived from NOAA SPC historical reports.
Hail
Holly: 100/100 · Thornton: 100/100
No gap.
Holly: Hail risk derived from NOAA SPC historical reports.
Thornton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Holly: Unavailable · Thornton: Unavailable
A score difference cannot be calculated without both sources.
Holly: Storm surge model is not available for this location yet.
Thornton: Storm surge model is not available for this location yet.
Wildfire
Holly: 36/100 · Thornton: 75/100
Thornton is 39 points higher.
Holly: Wildfire exposure derived from ingested fire potential tiles.
Thornton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Holly: Unavailable · Thornton: 31/100
A score difference cannot be calculated without both sources.
Holly: Air quality model is not available for this location yet.
Thornton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.