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Tornado History
Delaware Tornado History
This county-level tornado history page focuses on Delaware, New York. The records below identify 11 tornadoes from 1986 through 2023, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $2.3M, with 0 deaths and 1 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Delaware, New York
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (0.2/yr in last decade)
May is the peak tornado month with 4 recorded events
Deadliest tornado: F2 in Delaware, New York with 0 deaths
1998 was the most active year with 3 tornadoes
The 1990s had the most tornado activity (5 events)
Longest tornado: 30 miles in Delaware, New York
Widest tornado: 300.0 yards in Delaware, New York
Most tornadoes in one day: 2 on May 31, 1998
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Delaware, New York, 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: 1998 was the most active year with 3 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 1998 with at least $1.4M in NOAA-listed property damage.
Historical Track Sketch
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 31, 1998 | F3 | Delaware, New York | 30 mi | 200 yd | 0 | 0 | $1.0M |
| October 1, 1986 | F2 | Delaware, New York | 0.1 mi | 10 yd | 0 | 0 | $250K |
| June 21, 1990 | F1 | Delaware, New York | 0.7 mi | 220 yd | 0 | 0 | $250K |
| June 26, 1998 | F1 | Delaware, New York | 3.5 mi | 100 yd | 0 | 0 | $250K |
| September 25, 2022 | EF1 | Delaware, New York | 2.29 mi | 150 yd | 0 | 0 | $85K |
| May 24, 2004 | F1 | Delaware, New York | 3 mi | 100 yd | 0 | 0 | $50K |
| May 31, 2002 | F1 | Delaware, New York | 1 mi | 300 yd | 0 | 1 | $10K |
| June 9, 1990 | F0 | Delaware, New York | 0.3 mi | 50 yd | 0 | 0 | $250K |
| May 31, 1998 | F0 | Delaware, New York | 3 mi | 75 yd | 0 | 0 | $150K |
| April 19, 2013 | EF0 | Delaware, New York | 1.21 mi | 200 yd | 0 | 0 | $30K |
| August 12, 2023 | EF0 | Delaware, New York | 3.66 mi | 150 yd | 0 | 0 | $15K |
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Source And Limits
Data source: NOAA/NCEI. TornadoTrace summarizes historical records for screening and research. Coordinates, damage estimates, narratives, and event details can be approximate, incomplete, revised, or missing. Do not use this page as legal, insurance, engineering, real estate, emergency management, or safety advice.