FEMA rates relative heat wave risk for Canyon County as relatively high and reports FEMA annualized frequency of 1.919 per year for the area.
FEMA summary
FEMA's profile for Canyon County reports FEMA annualized frequency of 1.919 per year for heat wave. FEMA's relative risk rating for the area is relatively 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 Canyon County.
Heat Wave
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
95.5/100
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 Canyon County. It is not an estimate for a home or address.
City risk summary
For Nampa, FEMA rates heat wave risk for Canyon County as relatively high, with a relative score of 95.5/100. The next highest relative scores are lightning at 93.6/100 and earthquake at 89.7/100.
Using FEMA data for Canyon County, Nampa is #3 among 5 covered Idaho entries for heat wave risk. Meridian is about 8.5 straight-line miles from the Nampa map point; its FEMA figures cover Ada County.
For homeowners and movers
Preparedness actions
Living in Nampa? Learn how to handle water storage, sanitation, and security in a small space.
The map shows Nampa. All FEMA figures on this page cover Canyon County.
The FEMA figures cover Canyon County. Address-level conditions require local maps, building records, and property details.
FEMA rates relative heat wave risk for Canyon County as relatively high. Its FEMA annualized frequency is 1.919 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, Nampa is #3 for relative heat wave risk based on FEMA's score for Canyon County. Homes within Nampa can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for Canyon County, the highest relative ratings are Heat Wave (Relatively High), Lightning (Relatively High), and Earthquake (Relatively Low). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover Canyon County. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives Canyon 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.
Distances are measured between city coordinates.
| City | Distance | Heat Wave rating | Relative score |
|---|---|---|---|
| Meridian, ID | 9 mi | Relatively High | 96.9 |
| Boise, ID | 17 mi | Relatively High | 96.9 |
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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.