City vs city
Charlotte Hall vs Frederick, MD
Charlotte Hall currently scores 2 points higher overall than Frederick, 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 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
Charlotte Hall: 37/100 · Frederick: 35/100
Charlotte Hall is 2 points higher.
Flood
Charlotte Hall: 21/100 · Frederick: 20/100
Charlotte Hall is 1 points higher.
Charlotte Hall: FEMA NFHL flood zones: 4 features intersect this tile.
Frederick: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Charlotte Hall: 22/100 · Frederick: 20/100
Charlotte Hall is 2 points higher.
Charlotte Hall: Wind exposure derived from ingested design wind / climatology tiles.
Frederick: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charlotte Hall: 42/100 · Frederick: 26/100
Charlotte Hall is 16 points higher.
Charlotte Hall: Lightning exposure derived from ingested climatology tiles.
Frederick: Lightning exposure derived from ingested climatology tiles.
Tornado
Charlotte Hall: 38/100 · Frederick: 15/100
Charlotte Hall is 23 points higher.
Charlotte Hall: Tornado risk derived from NOAA SPC historical reports.
Frederick: Tornado risk derived from NOAA SPC historical reports.
Hail
Charlotte Hall: 41/100 · Frederick: 74/100
Frederick is 33 points higher.
Charlotte Hall: Hail risk derived from NOAA SPC historical reports.
Frederick: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charlotte Hall: Unavailable · Frederick: Unavailable
A score difference cannot be calculated without both sources.
Charlotte Hall: Storm surge model is not available for this location yet.
Frederick: Storm surge model is not available for this location yet.
Wildfire
Charlotte Hall: 49/100 · Frederick: 47/100
Charlotte Hall is 2 points higher.
Charlotte Hall: Wildfire exposure derived from ingested fire potential tiles.
Frederick: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charlotte Hall: 44/100 · Frederick: 42/100
Charlotte Hall is 2 points higher.
Charlotte Hall: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Frederick: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.