Tornado History
Winnebago Tornado History
This county-level tornado history page focuses on Winnebago, Iowa. The records below identify 23 tornadoes from 1961 through 2025, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $9.2M, with 0 deaths and 5 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Winnebago, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.4 tornadoes per year (0.4/yr in last decade)
June is the peak tornado month with 9 recorded events
Deadliest tornado: F0 in Winnebago, Iowa with 0 deaths
1984 was the most active year with 3 tornadoes
The 1980s had the most tornado activity (7 events)
Longest tornado: 13 miles in Winnebago, Iowa
Widest tornado: 200.0 yards in Winnebago, Iowa
Most tornadoes in one day: 2 on Jun 7, 1984
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Winnebago, Iowa, June is the most active month with 9 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1984 was the most active year with 3 recorded tornadoes.
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.
Summary: The highest reported property damage year in this group is 1984 with at least $5.2M in NOAA-listed property damage.
Historical Track Sketch
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Winnebago, Iowa.
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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.
| Date | Rating | Area | Length | Width | Deaths | Injuries | Min. property damage |
|---|---|---|---|---|---|---|---|
| September 20, 1980 | F2 | Winnebago, Iowa | 10.2 mi | 60 yd | 0 | 0 | $2.5M |
| June 7, 1984 | F2 | Winnebago, Iowa | 13 mi | 150 yd | 0 | 0 | $2.5M |
| June 7, 1984 | F2 | Winnebago, Iowa | 13 mi | 127 yd | 0 | 0 | $2.5M |
| May 17, 1982 | F2 | Winnebago, Iowa | 11 mi | 80 yd | 0 | 0 | $250K |
| August 2, 1990 | F2 | Winnebago, Iowa | 7 mi | 63 yd | 0 | 0 | $250K |
| August 9, 1999 | F2 | Winnebago, Iowa | 8 mi | 40 yd | 0 | 0 | $100K |
| April 2, 1967 | F1 | Winnebago, Iowa | 0 mi | 200 yd | 0 | 0 | $250K |
| April 26, 1984 | F1 | Winnebago, Iowa | 8 mi | 10 yd | 0 | 5 | $250K |
| July 11, 1987 | F1 | Winnebago, Iowa | 2 mi | 20 yd | 0 | 0 | $250K |
| June 7, 2008 | EF1 | Winnebago, Iowa | 6.37 mi | 150 yd | 0 | 0 | $250K |
| December 15, 2021 | EF1 | Winnebago, Iowa | 2.62 mi | 90 yd | 0 | 0 | $50K |
| June 17, 1962 | F1 | Winnebago, Iowa | 1 mi | 200 yd | 0 | 0 | $25K |
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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.