City vs city
Charleston vs Gayle Mill, SC
Charleston currently scores 26 points higher overall than Gayle Mill, with the largest gap in hail.
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
Charleston: 60/100 · Gayle Mill: 34/100
Charleston is 26 points higher.
Flood
Charleston: 78/100 · Gayle Mill: 29/100
Charleston is 49 points higher.
Charleston: FEMA NFHL flood zones: 28 features intersect this tile.
Gayle Mill: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Charleston: 51/100 · Gayle Mill: 19/100
Charleston is 32 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Gayle Mill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 49/100 · Gayle Mill: 49/100
No gap.
Charleston: Lightning exposure derived from ingested climatology tiles.
Gayle Mill: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 12/100 · Gayle Mill: 19/100
Gayle Mill is 7 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Gayle Mill: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Gayle Mill: 38/100
Charleston is 62 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Gayle Mill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 99/100 · Gayle Mill: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Gayle Mill: Storm surge model is not available for this location yet.
Wildfire
Charleston: 63/100 · Gayle Mill: 56/100
Charleston is 7 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Gayle Mill: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Charleston: 26/100 · Gayle Mill: 27/100
Gayle Mill is 1 points higher.
Charleston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Gayle Mill: Air quality signal derived from the latest EPA AirNow combined AQI grid.