St. Louis County, Minnesota tornadoes

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40confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: September 19, 2024, EF1. 2026 so far: 1 preliminary report 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 St. Louis County

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The record

At a glance

Total401950 to 2025
Per year0.5average since 1950
Peak monthAugust14 of 40
StrongestF3Aug 6, 1969
Deaths3whole paths, see note
Injuries37whole paths, see note

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

Seasons

When tornadoes hit here

By month

140 Jan: 0Feb: 0Mar: 0Apr: 1May: 4Jun: 7Jul: 9Aug: 14Sep: 5Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

August is the peak month, with 14 of 40 tornadoes.

By time of day

70 12 AM: 0: 0: 03 AM: 0: 0: 16 AM: 0: 0: 09 AM: 0: 1: 012 PM: 0: 1: 13 PM: 7: 7: 76 PM: 5: 4: 39 PM: 1: 2: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 3:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

80 1950: 0: 0: 0: 1: 0: 0: 0: 0: 4: 11960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 81970: 1: 3: 0: 0: 1: 0: 1: 0: 1: 01980: 1: 0: 0: 1: 0: 1: 1: 0: 0: 01990: 0: 0: 2: 0: 0: 2: 0: 0: 0: 12000: 0: 0: 0: 1: 0: 0: 0: 0: 0: 02010: 0: 0: 1: 0: 0: 1: 1: 0: 0: 32020: 0: 0: 1: 0: 2: 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. This year so far: 1 preliminary reports.

By rating

EF0
17
EF1
14
EF2
4
EF3
5

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

F3, August 6, 1969

2 deaths, 3 injuries Strongest

F3, August 6, 1969

17.2 mile path Longest path

34.7 miles, F1

August 25, 1974, whole path Widest

2,933 yards, F3

August 6, 1969
Every tornado

All 40 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Sep 19, 2024EF15.9 mi200 yd00
Jul 7, 2024EF01.95 mi30 yd00
May 18, 2022EF03.1 mi50 yd00
Jul 17, 2019EF05.72 mi500 yd00
Jul 17, 2019EF15.73 mi420 yd00
Jul 17, 2019EF13.43 mi600 yd00
Jun 19, 2016EF17.23 mi250 yd00
Aug 8, 2015EF11.58 mi110 yd00
Aug 9, 2012EF00.25 mi13 yd00
Jul 14, 2003F05 mi50 yd00
Jul 27, 1999F0n/an/a00
Aug 22, 1995F00.1 mi10 yd00
Jul 12, 1995F00.2 mi20 yd00
Sep 16, 1992F03 mi40 yd00
Sep 16, 1992F08 mi100 yd00
Jun 21, 1986F12 mi40 yd00
Jul 20, 1985F00.1 mi10 yd00
Jun 30, 1983F00.2 mi10 yd00
Jun 12, 1980F11 mi50 yd00
Aug 14, 1978F114.5 mi120 yd02
Apr 14, 1976F120.9 mi200 yd00
Aug 25, 1974F134.7 mi200 yd00
Aug 9, 1971F10.2 mi30 yd01
Jun 30, 1971F00.3 mi100 yd00
Jun 19, 1971F11 mi120 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Jun 29, 20265 ESE ZimNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

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.