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Tornado History
Hamilton Tornado History
This county-level tornado history page focuses on Hamilton, Iowa. The records below identify 55 tornadoes from 1963 through 2024, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $41.5M, with 1 deaths and 13 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Hamilton, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.9 tornadoes per year (0.9/yr in last decade)
August is the peak tornado month with 13 recorded events
Deadliest tornado: F3 in Hamilton, Iowa with 1 deaths
2014 was the most active year with 13 tornadoes
The 2010s had the most tornado activity (14 events)
Longest tornado: 19 miles in Hamilton, Iowa
Widest tornado: 350.0 yards in Hamilton, Iowa
Most tornadoes in one day: 11 on Aug 31, 2014
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Hamilton, Iowa, August 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: 2014 was the most active year with 13 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 1989 with at least $25.0M 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 |
|---|---|---|---|---|---|---|---|
| May 24, 1989 | F4 | Hamilton, Iowa | 19 mi | 150 yd | 0 | 0 | $25.0M |
| November 12, 2005 | F3 | Hamilton, Iowa | 5.8 mi | 150 yd | 1 | 3 | $11.7M |
| March 13, 1990 | F2 | Hamilton, Iowa | 6 mi | 50 yd | 0 | 0 | $2.5M |
| June 22, 1974 | F2 | Hamilton, Iowa | 0 mi | 100 yd | 0 | 0 | $250K |
| June 28, 1979 | F2 | Hamilton, Iowa | 7.2 mi | 350 yd | 0 | 10 | $250K |
| June 28, 1979 | F2 | Hamilton, Iowa | 1 mi | 177 yd | 0 | 0 | $250K |
| December 15, 2021 | EF2 | Hamilton, Iowa | 10.89 mi | 100 yd | 0 | 0 | $180K |
| December 15, 2021 | EF2 | Hamilton, Iowa | 8.37 mi | 125 yd | 0 | 0 | $100K |
| May 17, 1991 | F2 | Hamilton, Iowa | 6.5 mi | 60 yd | 0 | 0 | $25K |
| October 16, 1980 | F1 | Hamilton, Iowa | 4.9 mi | 33 yd | 0 | 0 | $250K |
| June 19, 1990 | F1 | Hamilton, Iowa | 6.5 mi | 50 yd | 0 | 0 | $250K |
| May 24, 2024 | EF1 | Hamilton, Iowa | 2.87 mi | 75 yd | 0 | 0 | $80K |
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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.