City vs city
Berthoud vs Lyons, CO
Berthoud currently scores 5 points higher overall than Lyons, with the largest gap in flood.
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
Berthoud: 47/100 · Lyons: 42/100
Berthoud is 5 points higher.
Flood
Berthoud: 79/100 · Lyons: 43/100
Berthoud is 36 points higher.
Berthoud: FEMA NFHL flood zones: 10 features intersect this tile.
Lyons: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Berthoud: 16/100 · Lyons: 15/100
Berthoud is 1 points higher.
Berthoud: Wind exposure derived from ingested design wind / climatology tiles.
Lyons: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Berthoud: 23/100 · Lyons: 20/100
Berthoud is 3 points higher.
Berthoud: Lightning exposure derived from ingested climatology tiles.
Lyons: Lightning exposure derived from ingested climatology tiles.
Tornado
Berthoud: 4/100 · Lyons: 0/100
Berthoud is 4 points higher.
Berthoud: Tornado risk derived from NOAA SPC historical reports.
Lyons: Tornado risk derived from NOAA SPC historical reports.
Hail
Berthoud: 100/100 · Lyons: 78/100
Berthoud is 22 points higher.
Berthoud: Hail risk derived from NOAA SPC historical reports.
Lyons: Hail risk derived from NOAA SPC historical reports.
Storm surge
Berthoud: Unavailable · Lyons: Unavailable
A score difference cannot be calculated without both sources.
Berthoud: Storm surge model is not available for this location yet.
Lyons: Storm surge model is not available for this location yet.
Wildfire
Berthoud: 72/100 · Lyons: 66/100
Berthoud is 6 points higher.
Berthoud: Wildfire exposure derived from ingested fire potential tiles.
Lyons: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Berthoud: 35/100 · Lyons: 30/100
Berthoud is 5 points higher.
Berthoud: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Lyons: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.