Tornado History
Knox Tornado History
This county-level tornado history page focuses on Knox, Missouri. The records below identify 9 tornadoes from 1967 through 2023, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $775K, with 0 deaths and 2 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Knox, Missouri
Top local patterns from the historical tornado records in this group.
Average 0.2 tornadoes per year (0.2/yr in last decade)
May is the peak tornado month with 4 recorded events
Deadliest tornado: F0 in Knox, Missouri with 0 deaths
2009 was the most active year with 2 tornadoes
The 2000s had the most tornado activity (3 events)
Longest tornado: 16 miles in Knox, Missouri
Widest tornado: 450.0 yards in Knox, Missouri
Most tornadoes in one day: 2 on May 13, 2009
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Knox, Missouri, May is the most active month with 4 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2009 was the most active year with 2 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 1999 with at least $500K 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 Knox, Missouri.
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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 |
|---|---|---|---|---|---|---|---|
| April 8, 1999 | F2 | Knox, Missouri | 7 mi | 100 yd | 0 | 0 | $500K |
| May 13, 1970 | F2 | Knox, Missouri | 7.6 mi | 50 yd | 0 | 0 | $25K |
| May 10, 2003 | F2 | Knox, Missouri | 7 mi | 200 yd | 0 | 0 | N/A |
| August 4, 2023 | EF2 | Knox, Missouri | 1.64 mi | 450 yd | 0 | 2 | N/A |
| August 16, 1975 | F1 | Knox, Missouri | 16 mi | 100 yd | 0 | 0 | $250K |
| August 18, 1967 | F0 | Knox, Missouri | 1 mi | 33 yd | 0 | 0 | $30 |
| May 13, 2009 | EF0 | Knox, Missouri | 9.23 mi | 200 yd | 0 | 0 | N/A |
| May 13, 2009 | EF0 | Knox, Missouri | 3.13 mi | 100 yd | 0 | 0 | N/A |
| April 27, 2016 | EF0 | Knox, Missouri | 0.03 mi | 40 yd | 0 | 0 | N/A |
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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.