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Tornado History
Clay Tornado History
This county-level tornado history page focuses on Clay, South Dakota. The records below identify 29 tornadoes from 1965 through 2021, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $2.7M, with 0 deaths and 0 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Clay, South Dakota
Top local patterns from the historical tornado records in this group.
Average 0.5 tornadoes per year (0.1/yr in last decade)
June is the peak tornado month with 16 recorded events
Deadliest tornado: F2 in Clay, South Dakota with 0 deaths
2003 was the most active year with 8 tornadoes
The 2000s had the most tornado activity (12 events)
Longest tornado: 15 miles in Clay, South Dakota
Widest tornado: 210.0 yards in Clay, South Dakota
Most tornadoes in one day: 8 on Jun 24, 2003
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Clay, South Dakota, June is the most active month with 16 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2003 was the most active year with 8 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 1990 with at least $2.5M 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 8, 1965 | F2 | Clay, South Dakota | 4.5 mi | 10 yd | 0 | 0 | $25K |
| August 16, 1967 | F2 | Clay, South Dakota | 0 mi | 33 yd | 0 | 0 | $25K |
| September 26, 1981 | F2 | Clay, South Dakota | 0 mi | 33 yd | 0 | 0 | $25K |
| June 11, 1984 | F2 | Clay, South Dakota | 0 mi | 33 yd | 0 | 0 | $25K |
| June 7, 1965 | F2 | Clay, South Dakota | 0 mi | 33 yd | 0 | 0 | N/A |
| June 7, 1965 | F2 | Clay, South Dakota | 8.6 mi | 210 yd | 0 | 0 | N/A |
| June 16, 1990 | F1 | Clay, South Dakota | 2 mi | 60 yd | 0 | 0 | $2.5M |
| May 29, 2008 | EF1 | Clay, South Dakota | 1.91 mi | 100 yd | 0 | 0 | $100K |
| April 20, 1985 | F1 | Clay, South Dakota | 0.1 mi | 3 yd | 0 | 0 | $25K |
| August 12, 1985 | F1 | Clay, South Dakota | 15 mi | 30 yd | 0 | 0 | $2K |
| June 21, 1986 | F1 | Clay, South Dakota | 0.2 mi | 23 yd | 0 | 0 | $2K |
| June 24, 2003 | F1 | Clay, South Dakota | 1.5 mi | 200 yd | 0 | 0 | N/A |
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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.