Lyon County, Minnesota tornadoes

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29confirmed tornadoes since NOAA records began in 1950 (the first here in 1955). Most recent: July 19, 2017, 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 Lyon County

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The record

At a glance

Total291950 to 2025
Per year0.4average since 1950
Peak monthJune14 of 29
StrongestF5Jun 13, 1968
Deaths10whole paths, see note
Injuries175whole paths, see note

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

Seasons

When tornadoes hit here

By month

140 Jan: 0Feb: 0Mar: 1Apr: 2May: 7Jun: 14Jul: 5Aug: 0Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 14 of 29 tornadoes.

By time of day

80 12 AM: 1: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 3: 5: 13 PM: 3: 2: 86 PM: 2: 1: 19 PM: 2: 0: 012 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: 1: 0: 0: 0: 01960: 0: 0: 3: 0: 0: 0: 0: 0: 1: 01970: 0: 0: 0: 0: 1: 0: 0: 0: 0: 01980: 1: 0: 0: 0: 0: 1: 0: 0: 0: 01990: 0: 1: 2: 5: 0: 0: 0: 0: 0: 02000: 2: 1: 0: 0: 2: 1: 0: 1: 0: 02010: 0: 0: 1: 1: 2: 0: 0: 2: 0: 02020: 0: 0: 0: 0: 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
17
EF1
8
EF2
1
EF3
1
EF4
1
EF5
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

F5, June 13, 1968

9 deaths, 150 injuries Strongest

F5, June 13, 1968

9.1 mile path Longest path

30 miles, F4

July 7, 1955, whole path Widest

150 yards, F5

June 13, 1968
Every tornado

All 29 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jul 19, 2017EF01.54 mi50 yd00
Jul 19, 2017EF00.5 mi50 yd00
Jun 18, 2014EF00.25 mi50 yd00
Mar 31, 2014EF010.67 mi100 yd00
Jun 21, 2013EF00.1 mi50 yd00
Apr 15, 2012EF00.49 mi50 yd00
Jun 2, 2007EF00.5 mi100 yd00
Jun 29, 2005F03 mi100 yd00
Jun 12, 2004F00.1 mi50 yd00
Jun 11, 2004F00.1 mi50 yd00
Jun 10, 2001F00.1 mi50 yd00
Jul 25, 2000F00.1 mi50 yd00
May 7, 2000F00.1 mi50 yd00
Jun 7, 1993F12.5 mi50 yd06
May 7, 1993F11 mi70 yd04
May 7, 1993F19 mi100 yd00
May 7, 1993F13 mi100 yd00
May 6, 1993F14 mi70 yd00
Jun 16, 1992F22 mi30 yd00
Jun 16, 1992F312 mi80 yd00
May 28, 1991F11 mi10 yd00
Apr 21, 1985F114.5 mi100 yd00
Jul 15, 1980F02.3 mi60 yd00
May 30, 1974F10.1 mi50 yd02
Jun 13, 1968F59.1 mi150 yd9150
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.