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Tornado History
Brown Tornado History
This county-level tornado history page focuses on Brown, South Dakota. The records below identify 79 tornadoes from 1955 through 2025, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $4.2M, with 2 deaths and 28 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Brown, South Dakota
Top local patterns from the historical tornado records in this group.
Average 1.1 tornadoes per year (0.6/yr in last decade)
June is the peak tornado month with 37 recorded events
Deadliest tornado: F2 in Brown, South Dakota with 1 deaths
1980 was the most active year with 7 tornadoes
The 1980s had the most tornado activity (18 events)
Longest tornado: 35.4 miles in Brown, South Dakota
Widest tornado: 900.0 yards in Brown, South Dakota
Most tornadoes in one day: 6 on May 29, 1980
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Brown, South Dakota, June is the most active month with 37 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1980 was the most active year with 7 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 1979 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 |
|---|---|---|---|---|---|---|---|
| June 23, 2002 | F4 | Brown, South Dakota | 9 mi | 900 yd | 0 | 0 | N/A |
| May 31, 1996 | F3 | Brown, South Dakota | 27 mi | 400 yd | 0 | 1 | $750K |
| June 25, 1969 | F3 | Brown, South Dakota | 1.5 mi | 133 yd | 0 | 6 | $250K |
| July 1, 1973 | F3 | Brown, South Dakota | 0.3 mi | 30 yd | 1 | 3 | $25K |
| May 20, 1965 | F3 | Brown, South Dakota | 3.8 mi | 400 yd | 0 | 0 | $25K |
| June 21, 1961 | F3 | Brown, South Dakota | 35.4 mi | 33 yd | 0 | 0 | $2K |
| June 23, 2002 | F3 | Brown, South Dakota | 10 mi | 900 yd | 0 | 0 | N/A |
| July 31, 1966 | F2 | Brown, South Dakota | 2.3 mi | 253 yd | 1 | 3 | $250K |
| June 15, 1978 | F2 | Brown, South Dakota | 0 mi | 33 yd | 0 | 15 | $250K |
| June 28, 1955 | F2 | Brown, South Dakota | 5.4 mi | 50 yd | 0 | 0 | $25K |
| April 19, 1955 | F2 | Brown, South Dakota | 4.6 mi | 50 yd | 0 | 0 | $250 |
| May 22, 2010 | EF2 | Brown, South Dakota | 1.29 mi | 100 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.