City vs city
Rapid City vs Spearfish, SD
Spearfish currently scores 4 points higher overall than Rapid City, 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 is a current EPA AirNow signal; 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
Rapid City: 43/100 · Spearfish: 47/100
Spearfish is 4 points higher.
Flood
Rapid City: 53/100 · Spearfish: 47/100
Rapid City is 6 points higher.
Rapid City: FEMA NFHL flood zones: 8 features intersect this tile.
Spearfish: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Rapid City: 20/100 · Spearfish: 19/100
Rapid City is 1 points higher.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Spearfish: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rapid City: 23/100 · Spearfish: 28/100
Spearfish is 5 points higher.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Spearfish: Lightning exposure derived from ingested climatology tiles.
Tornado
Rapid City: 23/100 · Spearfish: 0/100
Rapid City is 23 points higher.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Spearfish: Tornado risk derived from NOAA SPC historical reports.
Hail
Rapid City: 100/100 · Spearfish: 100/100
No gap.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Spearfish: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rapid City: Unavailable · Spearfish: Unavailable
A score difference cannot be calculated without both sources.
Rapid City: Storm surge model is not available for this location yet.
Spearfish: Storm surge model is not available for this location yet.
Wildfire
Rapid City: 57/100 · Spearfish: 59/100
Spearfish is 2 points higher.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Spearfish: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Rapid City: 28/100 · Spearfish: 28/100
No gap.
Rapid City: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Spearfish: Air quality signal derived from the latest EPA AirNow combined AQI grid.