Tornado Risk in St. Johns County, FL
How likely is a tornado in St. Johns County, FL?
68 tornado tracks have crossed St. Johns County since 1950 by NOAA's count, roughly one every 1.1 years - the High band on this site's scale. That is the 95th percentile nationally for tornado frequency. Within Florida alone, St. Johns County ranks 21 of 67 counties for tornado frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in St. Johns County in NOAA's 76-year database. Of its 68 recorded tracks, 59 were weak (EF0-1) and 8 significant (EF2-3).
Shelter and safe-room economics
Florida does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a St. Johns County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
334,928 people live in St. Johns County, and a tornado outbreak's power loss usually reaches far more of Florida than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
What St. Johns County's figure does not tell you
St. Johns County's figure is county-wide, not address-specific. St. Johns County covers about 601 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. St. Johns County has about 334,928 residents.