FEMA rates relative cold wave risk for Bonneville County as very high and reports FEMA annualized frequency of 1.016 per year for the area.
FEMA summary
FEMA's profile for Bonneville County reports FEMA annualized frequency of 1.016 per year for cold wave. FEMA's relative risk rating for the area is very high; the annualized frequency is a separate measure.
Hazard metrics cover FEMA county-equivalent geographies rather than individual addresses or parcels. Use local or state hazard maps before making a property, insurance, retrofit, or evacuation decision.
Select a hazard to inspect FEMA's figures for Bonneville County.
Cold Wave
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
97.8/100
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
The area loss estimate combines FEMA's modeled losses to buildings, population, and agriculture across Bonneville County. It is not an estimate for a home or address.
City risk summary
For Idaho Falls, FEMA rates cold wave risk for Bonneville County as very high, with a relative score of 97.8/100. The next highest relative scores are earthquake at 93.5/100 and wildfire at 89.9/100.
Using FEMA data for Bonneville County, Idaho Falls is #2 among 5 covered Idaho entries for cold wave risk.
For homeowners and movers
Preparedness actions
Living in Idaho Falls? Learn how to handle water storage, sanitation, and security in a small space.
The map shows Idaho Falls. All FEMA figures on this page cover Bonneville County.
The FEMA figures cover Bonneville County. Address-level conditions require local maps, building records, and property details.
FEMA rates relative cold wave risk for Bonneville County as very high. Its FEMA annualized frequency is 1.016 per year. Damage at a specific address also depends on the building, soil, elevation, and exact hazard zone.
Among 5 Idaho cities covered by this directory, Idaho Falls is #2 for relative cold wave risk based on FEMA's score for Bonneville County. Homes within Idaho Falls can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for Bonneville County, the highest relative ratings are Cold Wave (Very High), Earthquake (Relatively Moderate), and Wildfire (Relatively Moderate). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover Bonneville County. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives Bonneville County an overall relative risk rating of relatively low. Conditions at a specific home depend on its hazard zones, building type, maintenance, insurance, and access to evacuation routes and emergency services.
Start with this step: Confirm the exact hazard using official local maps before making property or insurance decisions. Know how local officials issue warnings and evacuation instructions. Use Ready.gov Be Informed and local emergency guidance for a complete plan.
Limited to products tagged for cold wave or general preparedness.
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View productHazard metrics come from FEMA National Risk Index v1.19.0 (March 2023). City population and coordinates come from SimpleMaps US Cities Database. For current conditions, use official local maps, warnings, inspections, and professional advice.