Tornado History
Delaware Tornado History
This county-level tornado history page focuses on Delaware, Oklahoma. The records below identify 66 tornadoes from 1954 through 2026, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $16.9M, with 0 deaths and 28 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Delaware, Oklahoma
Top local patterns from the historical tornado records in this group.
Average 0.9 tornadoes per year (1.9/yr in last decade)
May is the peak tornado month with 36 recorded events
Deadliest tornado: F1 in Delaware, Oklahoma with 0 deaths
2011 was the most active year with 13 tornadoes
The 2010s had the most tornado activity (27 events)
Longest tornado: 23.9 miles in Delaware, Oklahoma
Widest tornado: 2,700.0 yards in Delaware, Oklahoma
Most tornadoes in one day: 8 on May 22, 2011
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Delaware, Oklahoma, May is the most active month with 36 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2011 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 2006 with at least $3.8M 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 Delaware, Oklahoma.
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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 |
|---|---|---|---|---|---|---|---|
| March 12, 2006 | F3 | Delaware, Oklahoma | 17 mi | 440 yd | 0 | 8 | $3.0M |
| April 7, 1980 | F3 | Delaware, Oklahoma | 9.3 mi | 33 yd | 0 | 0 | $2.5M |
| May 22, 2011 | EF3 | Delaware, Oklahoma | 16.5 mi | 1550 yd | 0 | 2 | $1.0M |
| May 9, 1959 | F3 | Delaware, Oklahoma | 15.9 mi | 880 yd | 0 | 0 | $250K |
| June 8, 1974 | F3 | Delaware, Oklahoma | 2.7 mi | 150 yd | 0 | 0 | $250K |
| May 20, 1957 | F3 | Delaware, Oklahoma | 15.2 mi | 200 yd | 0 | 0 | $2K |
| April 27, 1984 | F2 | Delaware, Oklahoma | 2 mi | 20 yd | 0 | 0 | $2.5M |
| May 22, 2011 | EF2 | Delaware, Oklahoma | 6.7 mi | 800 yd | 0 | 0 | $1.0M |
| May 22, 2019 | EF2 | Delaware, Oklahoma | 16.5 mi | 1100 yd | 0 | 0 | $500K |
| May 22, 2011 | EF2 | Delaware, Oklahoma | 2.9 mi | 350 yd | 0 | 12 | $400K |
| April 18, 2013 | EF2 | Delaware, Oklahoma | 8 mi | 800 yd | 0 | 0 | $400K |
| May 22, 1971 | F2 | Delaware, Oklahoma | 3.8 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.