City vs city
South Portland vs South Windham, ME
South Portland currently scores 6 points higher overall than South Windham, with the largest gap in wildfire.
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
South Portland: 33/100 · South Windham: 27/100
South Portland is 6 points higher.
Flood
South Portland: 39/100 · South Windham: 22/100
South Portland is 17 points higher.
South Portland: FEMA NFHL flood zones: 16 features intersect this tile.
South Windham: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
South Portland: 20/100 · South Windham: 19/100
South Portland is 1 points higher.
South Portland: Wind exposure derived from ingested design wind / climatology tiles.
South Windham: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
South Portland: 4/100 · South Windham: 6/100
South Windham is 2 points higher.
South Portland: Lightning exposure derived from ingested climatology tiles.
South Windham: Lightning exposure derived from ingested climatology tiles.
Tornado
South Portland: 0/100 · South Windham: 0/100
No gap.
South Portland: Tornado risk derived from NOAA SPC historical reports.
South Windham: Tornado risk derived from NOAA SPC historical reports.
Hail
South Portland: 31/100 · South Windham: 28/100
South Portland is 3 points higher.
South Portland: Hail risk derived from NOAA SPC historical reports.
South Windham: Hail risk derived from NOAA SPC historical reports.
Storm surge
South Portland: 99/100 · South Windham: Unavailable
A score difference cannot be calculated without both sources.
South Portland: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
South Windham: Storm surge model is not available for this location yet.
Wildfire
South Portland: 9/100 · South Windham: 59/100
South Windham is 50 points higher.
South Portland: Wildfire exposure derived from ingested fire potential tiles.
South Windham: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
South Portland: 26/100 · South Windham: 26/100
No gap.
South Portland: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Windham: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.