City vs city
Cool vs Grass Valley, CA
Cool currently scores 1 points higher overall than Grass Valley, with the largest gap in current air quality.
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
Cool: 37/100 · Grass Valley: 36/100
Cool is 1 points higher.
Flood
Cool: 30/100 · Grass Valley: 26/100
Cool is 4 points higher.
Cool: FEMA NFHL flood zones: 4 features intersect this tile.
Grass Valley: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Cool: 4/100 · Grass Valley: 4/100
No gap.
Cool: Wind exposure derived from ingested design wind / climatology tiles.
Grass Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Cool: 2/100 · Grass Valley: 1/100
Cool is 1 points higher.
Cool: Lightning exposure derived from ingested climatology tiles.
Grass Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Cool: 0/100 · Grass Valley: 0/100
No gap.
Cool: Tornado risk derived from NOAA SPC historical reports.
Grass Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Cool: 1/100 · Grass Valley: 3/100
Grass Valley is 2 points higher.
Cool: Hail risk derived from NOAA SPC historical reports.
Grass Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Cool: Unavailable · Grass Valley: Unavailable
A score difference cannot be calculated without both sources.
Cool: Storm surge model is not available for this location yet.
Grass Valley: Storm surge model is not available for this location yet.
Wildfire
Cool: 87/100 · Grass Valley: 84/100
Cool is 3 points higher.
Cool: Wildfire exposure derived from ingested fire potential tiles.
Grass Valley: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Cool: 95/100 · Grass Valley: 100/100
Grass Valley is 5 points higher.
Cool: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Grass Valley: Air quality signal derived from the latest EPA AirNow combined AQI grid.