Tornado Risk in Idaho County, ID
Idaho County's tornado history, by the numbers
2 tornado tracks have crossed Idaho County since 1979 by NOAA's count, roughly one every 38.5 years - the Minimal band on this site's scale. That is the 8th percentile nationally for tornado frequency. Idaho has 44 counties in this dataset; Idaho County ranks 34 of them by frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Idaho County in NOAA's 76-year database. Of its 2 recorded tracks, 2 were weak (EF0-1) and 0 significant (EF2-3).
Shelter and safe-room economics
Idaho does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Idaho County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
A direct hit is not required for Idaho County to lose power - outbreak-wide outages across Idaho regularly reach homes and businesses well outside the actual tracks. A battery bank covers that gap without a generator's fuel and venting needs.
What Idaho County's figure does not tell you
Idaho County's figure is county-wide, not address-specific. Idaho County covers about 8,477 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Idaho County has about 17,912 residents.