Stanley County, South Dakota tornadoes

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23confirmed tornadoes since NOAA records began in 1950 (the first here in 1960). Most recent: July 18, 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 Stanley County

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The record

At a glance

Total231950 to 2025
Per year0.3average since 1950
Peak monthJune9 of 23
StrongestF2Aug 24, 1960
Deaths0whole paths, see note
Injuries4whole paths, see note

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

Seasons

When tornadoes hit here

By month

90 Jan: 0Feb: 0Mar: 0Apr: 0May: 4Jun: 9Jul: 5Aug: 3Sep: 2Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 9 of 23 tornadoes.

By time of day

50 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 1: 0: 13 PM: 2: 3: 36 PM: 5: 1: 29 PM: 3: 1: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 6:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

30 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 1: 0: 1: 0: 3: 1: 0: 0: 1: 11970: 0: 0: 0: 2: 1: 1: 0: 0: 0: 01980: 0: 1: 2: 0: 0: 0: 1: 0: 0: 01990: 0: 0: 0: 0: 2: 0: 0: 0: 0: 02000: 0: 0: 0: 0: 1: 0: 0: 0: 0: 32010: 0: 0: 0: 0: 0: 0: 0: 0: 0: 02020: 0: 0: 0: 1: 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
15
EF1
5
EF2
3

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

Strongest

F2, August 24, 1960

13.6 mile path Longest path

13.6 miles, F2

August 24, 1960, whole path Widest

400 yards, F1

June 10, 2004
Every tornado

All 23 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jul 18, 2023EF00.12 mi10 yd00
Jun 15, 2009EF00.66 mi50 yd00
Jun 15, 2009EF00.43 mi50 yd00
Jun 15, 2009EF00.99 mi50 yd00
Jun 10, 2004F11 mi400 yd00
Jul 6, 1994F00.1 mi10 yd00
Jun 7, 1994F010 mi10 yd00
Sep 24, 1986F10.1 mi40 yd00
Jul 21, 1982F00.1 mi10 yd00
Jul 20, 1982F00.1 mi10 yd00
Sep 25, 1981F00.1 mi10 yd00
May 7, 1975F10.1 mi10 yd00
May 19, 1974F25.6 mi10 yd00
Aug 14, 1973F11 mi200 yd00
Jul 8, 1973F00.9 mi100 yd00
Aug 8, 1969F10.1 mi10 yd03
Jun 20, 1968F20.1 mi10 yd00
May 8, 1965F00.1 mi10 yd00
Jun 8, 1964F00.1 mi10 yd00
Jun 8, 1964F00.1 mi10 yd00
May 2, 1964F00.1 mi10 yd00
Jun 20, 1962F00.1 mi10 yd00
Aug 24, 1960F213.6 mi200 yd01
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.