Tornado History
Harper Tornado History
This county-level tornado history page focuses on Harper, Kansas. The records below identify 64 tornadoes from 1953 through 2025, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $3.3M, with 0 deaths and 1 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Harper, Kansas
Top local patterns from the historical tornado records in this group.
Average 0.9 tornadoes per year (0.4/yr in last decade)
May is the peak tornado month with 32 recorded events
Deadliest tornado: F0 in Harper, Kansas with 0 deaths
2004 was the most active year with 15 tornadoes
The 2000s had the most tornado activity (24 events)
Longest tornado: 22.33 miles in Harper, Kansas
Widest tornado: 1,000.0 yards in Harper, Kansas
Most tornadoes in one day: 10 on May 12, 2004
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Harper, Kansas, May is the most active month with 32 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2004 was the most active year with 15 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 2004 with at least $2.4M 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 Harper, Kansas.
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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 12, 2004 | F4 | Harper, Kansas | 1.2 mi | 500 yd | 0 | 1 | $275K |
| May 19, 2012 | EF3 | Harper, Kansas | 5.3 mi | 100 yd | 0 | 0 | N/A |
| May 19, 2012 | EF3 | Harper, Kansas | 9.68 mi | 150 yd | 0 | 0 | N/A |
| May 29, 2004 | F2 | Harper, Kansas | 8 mi | 500 yd | 0 | 0 | $175K |
| May 12, 2004 | F2 | Harper, Kansas | 1.8 mi | 200 yd | 0 | 0 | $140K |
| May 12, 2004 | F2 | Harper, Kansas | 2 mi | 300 yd | 0 | 0 | $140K |
| May 12, 2004 | F2 | Harper, Kansas | 1 mi | 100 yd | 0 | 0 | $100K |
| May 17, 1959 | F2 | Harper, Kansas | 2 mi | 400 yd | 0 | 0 | N/A |
| May 25, 2024 | EF2 | Harper, Kansas | 6.7 mi | 100 yd | 0 | 0 | N/A |
| May 29, 2004 | F1 | Harper, Kansas | 2.5 mi | 440 yd | 0 | 0 | $1.2M |
| October 18, 1973 | F1 | Harper, Kansas | 0.4 mi | 100 yd | 0 | 0 | $250K |
| May 17, 1981 | F1 | Harper, Kansas | 7.2 mi | 100 yd | 0 | 0 | $250K |
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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.