City vs city
Boulder vs Niwot, CO
Niwot currently scores 3 points higher overall than Boulder, with the largest gap in tornado.
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
Boulder: 45/100 · Niwot: 48/100
Niwot is 3 points higher.
Flood
Boulder: 50/100 · Niwot: 53/100
Niwot is 3 points higher.
Boulder: FEMA NFHL flood zones: 21 features intersect this tile.
Niwot: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Boulder: 15/100 · Niwot: 15/100
No gap.
Boulder: Wind exposure derived from ingested design wind / climatology tiles.
Niwot: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Boulder: 23/100 · Niwot: 24/100
Niwot is 1 points higher.
Boulder: Lightning exposure derived from ingested climatology tiles.
Niwot: Lightning exposure derived from ingested climatology tiles.
Tornado
Boulder: 23/100 · Niwot: 0/100
Boulder is 23 points higher.
Boulder: Tornado risk derived from NOAA SPC historical reports.
Niwot: Tornado risk derived from NOAA SPC historical reports.
Hail
Boulder: 100/100 · Niwot: 100/100
No gap.
Boulder: Hail risk derived from NOAA SPC historical reports.
Niwot: Hail risk derived from NOAA SPC historical reports.
Storm surge
Boulder: Unavailable · Niwot: Unavailable
A score difference cannot be calculated without both sources.
Boulder: Storm surge model is not available for this location yet.
Niwot: Storm surge model is not available for this location yet.
Wildfire
Boulder: 74/100 · Niwot: 69/100
Boulder is 5 points higher.
Boulder: Wildfire exposure derived from ingested fire potential tiles.
Niwot: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Boulder: 28/100 · Niwot: 29/100
Niwot is 1 points higher.
Boulder: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Niwot: Air quality signal derived from the latest EPA AirNow combined AQI grid.