Tornado History
Sioux Tornado History
This county-level tornado history page focuses on Sioux, Iowa. The records below identify 47 tornadoes from 1963 through 2024, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $12.6M, with 0 deaths and 0 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Sioux, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.8 tornadoes per year (0.9/yr in last decade)
May is the peak tornado month with 15 recorded events
Deadliest tornado: F1 in Sioux, Iowa with 0 deaths
2015 was the most active year with 4 tornadoes
The 2010s had the most tornado activity (13 events)
Longest tornado: 11.9 miles in Sioux, Iowa
Widest tornado: 400.0 yards in Sioux, Iowa
Most tornadoes in one day: 3 on Sep 22, 1968
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Sioux, Iowa, May is the most active month with 15 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2015 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 2014 with at least $3.0M 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 Sioux, 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 |
|---|---|---|---|---|---|---|---|
| September 22, 1968 | F3 | Sioux, Iowa | 4.7 mi | 50 yd | 0 | 0 | $2.5M |
| July 5, 1978 | F2 | Sioux, Iowa | 11.9 mi | 200 yd | 0 | 0 | $2.5M |
| August 8, 1979 | F2 | Sioux, Iowa | 0.4 mi | 100 yd | 0 | 0 | $2.5M |
| May 1, 2008 | EF2 | Sioux, Iowa | 8.89 mi | 400 yd | 0 | 0 | $500K |
| July 7, 1987 | F2 | Sioux, Iowa | 2 mi | 50 yd | 0 | 0 | $250K |
| June 2, 1966 | F2 | Sioux, Iowa | 11.5 mi | 300 yd | 0 | 0 | $25K |
| June 13, 1981 | F2 | Sioux, Iowa | 0 mi | 33 yd | 0 | 0 | $2K |
| May 11, 2014 | EF1 | Sioux, Iowa | 3.91 mi | 100 yd | 0 | 0 | $3.0M |
| November 12, 2005 | F1 | Sioux, Iowa | 1 mi | 100 yd | 0 | 0 | $800K |
| August 17, 2001 | F1 | Sioux, Iowa | 3 mi | 100 yd | 0 | 0 | $100K |
| August 17, 2001 | F1 | Sioux, Iowa | 1 mi | 100 yd | 0 | 0 | $50K |
| March 16, 1963 | F1 | Sioux, Iowa | 4.7 mi | 300 yd | 0 | 0 | $25K |
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Related Location Pages
- Sioux Center tornado history7
- Rock Vly tornado history5
- Hospers tornado history3
- Newkirk tornado history3
- Ireton tornado history2
- Alton tornado history2
- Granville tornado history2
- Maurice tornado history2
- Sioux Center Muni Ar tornado history2
- Hull tornado history1
- Chatsworth tornado history1
- Sheldon tornado history1
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.