Hamlin County, South Dakota tornadoes

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24confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: August 16, 2025, 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 Hamlin County

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The record

At a glance

Total241950 to 2025
Per year0.3average since 1950
Peak monthJune9 of 24
StrongestF2Jun 19, 1971
Deaths0whole paths, see note
Injuries13whole paths, see note

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

Seasons

When tornadoes hit here

By month

90 Jan: 0Feb: 0Mar: 0Apr: 1May: 6Jun: 9Jul: 5Aug: 1Sep: 1Oct: 1Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 9 of 24 tornadoes.

By time of day

70 12 AM: 0: 0: 13 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 1: 1: 63 PM: 7: 3: 16 PM: 1: 2: 19 PM: 0: 0: 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

30 1950: 0: 0: 0: 1: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 2: 0: 0: 1: 0: 01970: 0: 1: 0: 0: 0: 0: 0: 0: 0: 01980: 2: 2: 0: 0: 1: 0: 1: 0: 0: 01990: 0: 0: 0: 0: 0: 0: 2: 3: 0: 02000: 0: 1: 0: 1: 0: 0: 0: 0: 0: 02010: 0: 0: 0: 1: 0: 0: 0: 0: 0: 12020: 0: 0: 3: 0: 0: 119501960197019801990200020102020

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
14
EF1
6
EF2
4

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, June 19, 1971

36.8 mile path Longest path

36.8 miles, F2

June 19, 1971, whole path Widest

100 yards, F2

July 18, 1986
Every tornado

All 24 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Aug 16, 2025EF02.46 mi75 yd00
May 30, 2022EF00.65 mi10 yd00
May 12, 2022EF21.96 mi80 yd01
May 12, 2022EF10.52 mi20 yd01
Sep 9, 2019EF03.2 mi40 yd00
Jun 21, 2013EF00.37 mi50 yd00
Jun 24, 2003F00.1 mi25 yd00
Jun 13, 2001F00.1 mi25 yd00
Jun 22, 1997F10.8 mi23 yd00
Jun 22, 1997F10.5 mi23 yd00
Jun 22, 1997F00.2 mi10 yd00
Oct 26, 1996F11 mi25 yd00
May 18, 1996F00.3 mi10 yd00
Jul 18, 1986F214 mi100 yd00
May 18, 1984F00.1 mi10 yd00
Jul 22, 1981F00.1 mi10 yd00
Jul 22, 1981F20.1 mi10 yd00
Jun 18, 1980F00.1 mi10 yd00
Jun 18, 1980F00.1 mi10 yd00
Jun 19, 1971F236.8 mi10 yd00
Apr 16, 1967F10.1 mi20 yd011
Jul 10, 1964F00.1 mi10 yd00
Jul 10, 1964F00.1 mi10 yd00
May 9, 1953F16.8 mi97 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.