Tornado History

Decatur Tornado History

This county-level tornado history page focuses on Decatur, Iowa. The records below identify 18 tornadoes from 1957 through 2022, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $56.1M, with 0 deaths and 2 injuries recorded across the listed events.

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18recorded tornadoes
F4 (Devastating damage)highest rating
$56.1Mminimum property damage
March 5, 2022latest tornado
22 milongest listed path
600 ydwidest listed path

Historical Track Sketch

F4 June 7, 19841984F4 May 24, 19891989F4 June 2, 19801980F2 April 23, 19611961EF2 March 5, 20222022F2 June 22, 19641964F2 May 7, 19751975F1 July 13, 19861986EF1 November 11, 20152015F1 June 22, 19581958F0 August 20, 19641964F0 May 10, 19861986F0 April 8, 20012001F0 July 8, 19861986F0 July 8, 1986F0 May 27, 1996Unknown July 21, 1957EFU March 5, 2022© OpenStreetMap contributors

Rating Breakdown

  • F4 (Devastating damage)3
  • F2 (Considerable damage)3
  • EF2 (Considerable damage)1
  • F1 (Moderate damage)2
  • EF1 (Moderate damage)1
  • F0 (Light damage)6
  • Unknown rating1
  • Unknown rating1

Most Active Years

  • 19864
  • 19642
  • 20222
  • 19571
  • 19581
  • 19611
  • 19751
  • 19801

Notable Tornado Records

The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
June 7, 1984F4Decatur, Iowa22 mi250 yd00$25.0M
May 24, 1989F4Decatur, Iowa9 mi300 yd00$25.0M
June 2, 1980F4Decatur, Iowa16.5 mi140 yd00$2.5M
April 23, 1961F2Decatur, Iowa9.3 mi600 yd02$2.5M
March 5, 2022EF2Decatur, Iowa9.81 mi300 yd00$500K
June 22, 1964F2Decatur, Iowa1 mi200 yd00$250K
May 7, 1975F2Decatur, Iowa0 mi33 yd00$25K
July 13, 1986F1Decatur, Iowa0.5 mi40 yd00$250K
November 11, 2015EF1Decatur, Iowa9.34 mi200 yd00$5K
June 22, 1958F1Decatur, Iowa1 mi50 yd00$2K
August 20, 1964F0Decatur, Iowa0.5 mi50 yd00$25K
May 10, 1986F0Decatur, Iowa0.1 mi10 yd00$2K

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Source And Limits

Data source: NOAA/NCEI. TornadoTrace summarizes historical records for screening and research. Coordinates, damage estimates, narratives, and event details can be approximate, incomplete, revised, or missing. Do not use this page as legal, insurance, engineering, real estate, emergency management, or safety advice.