Tornado History Map

Custer County, South Dakota tornado history

15 tornadoes recorded in or across Custer County from 1961 to 2021, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Custer County

The Storm Prediction Center records 15 tornadoes whose paths touched Custer County, South Dakota between 1961 and 2021. None of them is recorded as having killed anyone. The busiest month is June, with 7 tornadoes. The strongest was an F2 on 22 June 1966. The most recent was on 23 May 2021.

  • 15tornadoes
  • 0deaths
  • 0injuries
  • 96per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Custer County?

RatingTornadoesShare
F0 / EF0747%
F1 / EF1533%
F2 / EF2320%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Custer County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 5 in 1960s.1960s51990s42000s12010s32020s2

The 2020s only run to 2021, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1960s5
1990s4
2000s1
2010s3
2020s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 7 in Jun.Jan0Feb0Mar0Apr0May3Jun7Jul3Aug2Sep0Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr0
May3
Jun7
Jul3
Aug2
Sep0
Oct0
Nov0
Dec0

Records for Custer County

  • Strongest: South Dakota tornado22 June 1966, F2, 0.1 miles long
  • Longest path: South Dakota tornado23 May 2021, EF1, 6.6 miles long
  • Most recent: South Dakota tornado23 May 2021, EF1, 5.9 miles long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

More in South Dakota

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