City vs city
Jefferson vs Yankton, SD
Yankton currently scores 1 points higher overall than Jefferson, 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
Jefferson: 47/100 · Yankton: 48/100
Yankton is 1 points higher.
Flood
Jefferson: 81/100 · Yankton: 50/100
Jefferson is 31 points higher.
Jefferson: FEMA NFHL flood zones: 11 features intersect this tile.
Yankton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Jefferson: 20/100 · Yankton: 21/100
Yankton is 1 points higher.
Jefferson: Wind exposure derived from ingested design wind / climatology tiles.
Yankton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Jefferson: 44/100 · Yankton: 32/100
Jefferson is 12 points higher.
Jefferson: Lightning exposure derived from ingested climatology tiles.
Yankton: Lightning exposure derived from ingested climatology tiles.
Tornado
Jefferson: 0/100 · Yankton: 31/100
Yankton is 31 points higher.
Jefferson: Tornado risk derived from NOAA SPC historical reports.
Yankton: Tornado risk derived from NOAA SPC historical reports.
Hail
Jefferson: 66/100 · Yankton: 100/100
Yankton is 34 points higher.
Jefferson: Hail risk derived from NOAA SPC historical reports.
Yankton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Jefferson: Unavailable · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Jefferson: Storm surge model is not available for this location yet.
Yankton: Storm surge model is not available for this location yet.
Wildfire
Jefferson: 47/100 · Yankton: 54/100
Yankton is 7 points higher.
Jefferson: Wildfire exposure derived from ingested fire potential tiles.
Yankton: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Jefferson: 25/100 · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Jefferson: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Yankton: Air quality model is not available for this location yet.