Tornado History
Lyon Tornado History
This county-level tornado history page focuses on Lyon, Iowa. The records below identify 41 tornadoes from 1951 through 2025, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $9.7M, with 1 deaths and 2 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Lyon, Iowa
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 13 recorded events
Deadliest tornado: F2 in Lyon, Iowa with 1 deaths
2008 was the most active year with 4 tornadoes
The 2000s had the most tornado activity (10 events)
Longest tornado: 14.2 miles in Lyon, Iowa
Widest tornado: 880.0 yards in Lyon, Iowa
Most tornadoes in one day: 3 on May 1, 2008
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Lyon, Iowa, June is the most active month with 13 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2008 was the most active year with 4 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 1986 with at least $5.0M 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 Lyon, 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 |
|---|---|---|---|---|---|---|---|
| April 26, 1986 | F2 | Lyon, Iowa | 8.5 mi | 120 yd | 1 | 2 | $2.5M |
| July 6, 1978 | F2 | Lyon, Iowa | 14.2 mi | 200 yd | 0 | 0 | $2.5M |
| April 26, 1986 | F2 | Lyon, Iowa | 9.5 mi | 70 yd | 0 | 0 | $2.5M |
| May 7, 1993 | F2 | Lyon, Iowa | 1.5 mi | 70 yd | 0 | 0 | $500K |
| June 25, 2010 | EF2 | Lyon, Iowa | 5.18 mi | 450 yd | 0 | 0 | $500K |
| June 19, 1954 | F2 | Lyon, Iowa | 2.3 mi | 880 yd | 0 | 0 | $25K |
| July 25, 1960 | F1 | Lyon, Iowa | 2 mi | 150 yd | 0 | 0 | $250K |
| April 21, 1985 | F1 | Lyon, Iowa | 1.2 mi | 40 yd | 0 | 0 | $250K |
| August 17, 2019 | EF1 | Lyon, Iowa | 6.95 mi | 75 yd | 0 | 0 | $200K |
| July 9, 2000 | F1 | Lyon, Iowa | 1 mi | 100 yd | 0 | 0 | $50K |
| April 18, 2004 | F1 | Lyon, Iowa | 4 mi | 100 yd | 0 | 0 | $50K |
| July 16, 1963 | F1 | Lyon, Iowa | 2.3 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.