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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.
Key Tornado Statistics
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Check any addressKey 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
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 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.