City vs city
Butte vs Grass Range, MT
Grass Range currently scores 3 points higher overall than Butte, with the largest gap in lightning.
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
Butte: 21/100 · Grass Range: 24/100
Grass Range is 3 points higher.
Flood
Butte: 28/100 · Grass Range: 26/100
Butte is 2 points higher.
Butte: FEMA NFHL flood zones: 4 features intersect this tile.
Grass Range: FEMA NFHL flood zones: 1 features intersect this tile.
Wind
Butte: 14/100 · Grass Range: 17/100
Grass Range is 3 points higher.
Butte: Wind exposure derived from ingested design wind / climatology tiles.
Grass Range: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Butte: 7/100 · Grass Range: 25/100
Grass Range is 18 points higher.
Butte: Lightning exposure derived from ingested climatology tiles.
Grass Range: Lightning exposure derived from ingested climatology tiles.
Tornado
Butte: 0/100 · Grass Range: 0/100
No gap.
Butte: Tornado risk derived from NOAA SPC historical reports.
Grass Range: Tornado risk derived from NOAA SPC historical reports.
Hail
Butte: 5/100 · Grass Range: 10/100
Grass Range is 5 points higher.
Butte: Hail risk derived from NOAA SPC historical reports.
Grass Range: Hail risk derived from NOAA SPC historical reports.
Storm surge
Butte: Unavailable · Grass Range: Unavailable
A score difference cannot be calculated without both sources.
Butte: Storm surge model is not available for this location yet.
Grass Range: Storm surge model is not available for this location yet.
Wildfire
Butte: 56/100 · Grass Range: 53/100
Butte is 3 points higher.
Butte: Wildfire exposure derived from ingested fire potential tiles.
Grass Range: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Butte: 17/100 · Grass Range: 15/100
Butte is 2 points higher.
Butte: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Grass Range: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.