Tornado History

Iowa Tornado History

This county-level tornado history page focuses on Iowa, Wisconsin. The records below identify 33 tornadoes from 1954 through 2025, including a highest listed rating of F5 (Incredible damage). NOAA damage estimates in this group total at least $6.8M, with 9 deaths and 206 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes33
Total Deaths9
Total Injuries206
Property Damage$6.8M
Avg Length5.7 mi
Avg Width122 yd

Key Tornado Facts for Iowa, Wisconsin

Top local patterns from the historical tornado records in this group.

Average 0.5 tornadoes per year (0.6/yr in last decade)
June is the peak tornado month with 14 recorded events
Deadliest tornado: F5 in Iowa, Wisconsin with 9 deaths
2014 was the most active year with 4 tornadoes
The 2000s had the most tornado activity (7 events)
Longest tornado: 29.07 miles in Iowa, Wisconsin
Widest tornado: 500.0 yards in Iowa, Wisconsin
Most tornadoes in one day: 3 on Jun 6, 2006

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Iowa, Wisconsin, June is the most active month with 14 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

4320

Summary: 2014 was the most active year with 4 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F2
EF2
F4
F5
Unknown

Summary: F2 tornadoes are the most common in this group, with 8 recorded events.

Property Damage Trends

Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.

$3.9M$392K$39K$0

Summary: The highest reported property damage year in this group is 2014 with at least $3.9M in NOAA-listed property damage.

Historical Track Sketch

F5 June 7, 19841984F4 July 3, 19831983EF2 June 29, 20142014EF2 June 29, 20142014F2 April 3, 19561956F2 June 29, 19691969F2 June 7, 19841984F2 May 30, 19851985F2 April 7, 19541954F2 May 15, 19651965F2 April 18, 19551955F2 September 2, 19631963F1 May 10, 20032003EF1 March 31, 20232023EF1 March 31, 2023F1 June 26, 1973F1 June 26, 1973EF1 July 16, 2025F1 June 12, 1994EF1 June 16, 2014F1 August 18, 2005EF1 June 16, 2014F1 May 8, 1988F1 May 18, 1967EF1 August 7, 2021F0 June 6, 2006F0 August 18, 2005F0 June 6, 2006F0 June 6, 2006EF0 June 18, 2009EF0 August 11, 2021EF0 August 11, 2021Unknown August 20, 1960© OpenStreetMap contributors
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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, 1984F5Iowa, Wisconsin10 mi450 yd9200$250K
July 3, 1983F4Iowa, Wisconsin0.5 mi50 yd00$25K
June 29, 2014EF2Iowa, Wisconsin29.07 mi400 yd00$3.5M
June 29, 2014EF2Iowa, Wisconsin5.05 mi200 yd00$400K
April 3, 1956F2Iowa, Wisconsin3 mi200 yd00$250K
June 29, 1969F2Iowa, Wisconsin3.8 mi100 yd00$250K
June 7, 1984F2Iowa, Wisconsin5 mi40 yd00$250K
May 30, 1985F2Iowa, Wisconsin14.2 mi500 yd00$250K
April 7, 1954F2Iowa, Wisconsin6.4 mi400 yd04$25K
May 15, 1965F2Iowa, Wisconsin1 mi33 yd01$25K
April 18, 1955F2Iowa, Wisconsin17.3 mi67 yd00N/A
September 2, 1963F2Iowa, Wisconsin22.5 mi33 yd01N/A
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Related Location Pages

Source And Limits

Data sourced from NOAA Storm Prediction Center and the NCEI Storm Events Database. TornadoTrace summarizes reported weather events for screening and research; it is not a damage assessment, inspection, or insurance determination. Coordinates and records can be approximate, incomplete, revised, or missing. No warranty of completeness or accuracy.

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