Tornado History
Delaware Tornado History
This county-level tornado history page focuses on Delaware, Ohio. The records below identify 14 tornadoes from 1958 through 2024, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $5.2M, with 4 deaths and 38 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Delaware, Ohio
Top local patterns from the historical tornado records in this group.
Average 0.2 tornadoes per year (0.6/yr in last decade)
August is the peak tornado month with 3 recorded events
Deadliest tornado: F2 in Delaware, Ohio with 4 deaths
2024 was the most active year with 4 tornadoes
The 2020s had the most tornado activity (5 events)
Longest tornado: 16.79 miles in Delaware, Ohio
Widest tornado: 600.0 yards in Delaware, Ohio
Most tornadoes in one day: 2 on Mar 14, 2024
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Delaware, Ohio, August is the most active month with 3 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2024 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 1965 with at least $2.5M 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, Ohio.
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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 11, 1965 | F2 | Delaware, Ohio | 12.3 mi | 400 yd | 4 | 35 | $2.5M |
| September 20, 2000 | F2 | Delaware, Ohio | 5 mi | 100 yd | 0 | 2 | $1.0M |
| March 14, 2024 | EF1 | Delaware, Ohio | 16.79 mi | 600 yd | 0 | 0 | $1.0M |
| April 19, 1978 | F1 | Delaware, Ohio | 6.8 mi | 33 yd | 0 | 0 | $250K |
| March 14, 2024 | EF1 | Delaware, Ohio | 3.88 mi | 400 yd | 0 | 0 | $50K |
| April 17, 2024 | EF1 | Delaware, Ohio | 0.9 mi | 100 yd | 0 | 0 | $35K |
| August 14, 1958 | F1 | Delaware, Ohio | 0 mi | 33 yd | 0 | 1 | N/A |
| June 13, 2013 | EF0 | Delaware, Ohio | 0.21 mi | 50 yd | 0 | 0 | $200K |
| February 21, 2014 | EF0 | Delaware, Ohio | 0.13 mi | 80 yd | 0 | 0 | $100K |
| August 17, 1997 | F0 | Delaware, Ohio | 0.5 mi | 100 yd | 0 | 0 | $50K |
| September 7, 2020 | EF0 | Delaware, Ohio | 3.21 mi | 150 yd | 0 | 0 | $25K |
| August 20, 2016 | EF0 | Delaware, Ohio | 3.3 mi | 100 yd | 0 | 0 | $20K |
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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.