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Tornado History
Hancock Tornado History
This county-level tornado history page focuses on Hancock, Iowa. The records below identify 26 tornadoes from 1951 through 2025, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $11.8M, with 0 deaths and 11 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Hancock, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (0.3/yr in last decade)
June is the peak tornado month with 9 recorded events
Deadliest tornado: F2 in Hancock, Iowa with 0 deaths
1984 was the most active year with 3 tornadoes
The 1980s had the most tornado activity (6 events)
Longest tornado: 19.3 miles in Hancock, Iowa
Widest tornado: 500.0 yards in Hancock, Iowa
Most tornadoes in one day: 3 on Jun 18, 1994
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Hancock, 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
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 |
|---|---|---|---|---|---|---|---|
| May 10, 1953 | F4 | Hancock, Iowa | 6.4 mi | 33 yd | 0 | 3 | $250K |
| April 30, 1967 | F2 | Hancock, Iowa | 4.3 mi | 300 yd | 0 | 0 | $2.5M |
| September 20, 1980 | F2 | Hancock, Iowa | 19.3 mi | 33 yd | 0 | 0 | $2.5M |
| June 7, 1984 | F2 | Hancock, Iowa | 14 mi | 150 yd | 0 | 0 | $2.5M |
| June 7, 1984 | F2 | Hancock, Iowa | 5 mi | 127 yd | 0 | 0 | $2.5M |
| May 9, 1963 | F2 | Hancock, Iowa | 13.1 mi | 400 yd | 0 | 0 | $250K |
| May 17, 1982 | F2 | Hancock, Iowa | 2 mi | 80 yd | 0 | 0 | $250K |
| September 26, 1973 | F2 | Hancock, Iowa | 1 mi | 50 yd | 0 | 0 | $25K |
| June 25, 1951 | F2 | Hancock, Iowa | 0.8 mi | 500 yd | 0 | 8 | N/A |
| June 18, 1994 | F1 | Hancock, Iowa | 1 mi | 50 yd | 0 | 0 | $500K |
| July 14, 1984 | F1 | Hancock, Iowa | 2 mi | 20 yd | 0 | 0 | $250K |
| April 23, 1990 | F1 | Hancock, Iowa | 0.5 mi | 50 yd | 0 | 0 | $250K |
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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.