Boone County, Indiana tornadoes

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34confirmed tornadoes since NOAA records began in 1950 (the first here in 1956). Most recent: March 31, 2023, EF0. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in Boone County

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The record

At a glance

Total341950 to 2025
Per year0.4average since 1950
Peak monthApril6 of 34
StrongestF4Apr 11, 1965
Deaths31whole paths, see note
Injuries158whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Boone County.

Seasons

When tornadoes hit here

By month

60 Jan: 0Feb: 1Mar: 5Apr: 6May: 4Jun: 6Jul: 4Aug: 3Sep: 0Oct: 1Nov: 4Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 6 of 34 tornadoes.

By time of day

50 12 AM: 0: 1: 13 AM: 0: 1: 06 AM: 1: 0: 19 AM: 0: 0: 012 PM: 0: 1: 43 PM: 1: 4: 56 PM: 1: 5: 59 PM: 2: 0: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 0: 0: 1: 1: 0: 01960: 0: 3: 1: 0: 0: 4: 0: 0: 0: 01970: 0: 1: 0: 1: 1: 0: 0: 0: 0: 01980: 1: 0: 0: 0: 0: 0: 0: 0: 0: 01990: 5: 1: 0: 0: 0: 1: 0: 0: 0: 02000: 0: 0: 0: 3: 2: 0: 0: 0: 0: 02010: 0: 1: 0: 2: 0: 0: 2: 1: 0: 02020: 0: 0: 0: 2: 0: 019501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0
7
EF1
12
EF2
12
EF3
2
EF4
1

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

F4, April 11, 1965

28 deaths, 123 injuries Strongest

F4, April 11, 1965

45.7 mile path Longest path

45.7 miles, F4

April 11, 1965, whole path Widest

1,667 yards, F4

April 11, 1965
Every tornado

All 34 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Mar 31, 2023EF01.77 mi50 yd00
Mar 31, 2023EF210.55 mi100 yd00
May 20, 2017EF10.08 mi40 yd00
Aug 15, 2016EF23.8 mi150 yd00
Apr 28, 2016EF10.17 mi40 yd00
Nov 17, 2013EF13.62 mi33 yd00
Nov 17, 2013EF23.67 mi75 yd02
Apr 19, 2011EF10.64 mi50 yd00
Apr 20, 2004F00.1 mi30 yd00
Apr 20, 2004F12 mi50 yd08
Jul 21, 2003F02.5 mi50 yd00
Jul 4, 2003F01.5 mi50 yd00
May 14, 2003F13 mi50 yd00
May 13, 1995F214 mi250 yd310
May 17, 1991F00.2 mi20 yd00
Oct 3, 1990F117 mi300 yd00
Jun 2, 1990F17 mi30 yd05
Jun 2, 1990F06 mi30 yd00
Jun 2, 1990F10.5 mi30 yd00
Jun 2, 1990F14.5 mi30 yd01
Jun 1, 1980F00.1 mi10 yd00
Apr 3, 1974F20.1 mi50 yd00
Jun 26, 1973F10.1 mi30 yd00
Mar 15, 1971F20.1 mi20 yd02
Nov 26, 1965F24.7 mi10 yd00
Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.