Tornado Risk in Tompkins County, NY
Tompkins County's tornado history, by the numbers
9 tornado tracks have crossed Tompkins County since 1961 by NOAA's count, roughly one every 8.5 years - the Low band on this site's scale. That is the 27th percentile nationally for tornado frequency. Among 62 New York counties in this dataset, Tompkins County ranks 27 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Tompkins County in NOAA's 76-year database. Of its 9 recorded tracks, 9 were weak (EF0-1) and 0 significant (EF2-3).
Shelter and safe-room economics
New York does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Tompkins County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
105,602 people live in Tompkins County, and a tornado outbreak's power loss usually reaches far more of New York than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
What Tompkins County's figure does not tell you
Tompkins County's figure is county-wide, not address-specific. Tompkins County covers about 475 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. Tompkins County has about 105,602 residents.