Tornado Risk in Chittenden County, VT
Chittenden County's tornado history, by the numbers
6 tornado tracks have crossed Chittenden County since 1953 by NOAA's count, roughly one every 12.7 years - the Minimal band on this site's scale. That is the 20th percentile nationally for tornado frequency. Vermont has 14 counties in this dataset; Chittenden County ranks 2 of them by frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Chittenden County in NOAA's 76-year database. Of its 6 recorded tracks, 5 were weak (EF0-1) and 1 significant (EF2-3).
Shelter and safe-room economics
Vermont does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Chittenden 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 Chittenden County to lose power - outbreak-wide outages across Vermont 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 Chittenden County's figure does not tell you
Chittenden County's figure is county-wide, not address-specific. Chittenden County covers about 537 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. Chittenden County has about 170,851 residents.