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.
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Key Tornado Statistics
Key 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
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Hamilton, 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 |
|---|---|---|---|---|---|---|---|
| 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 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.