Tornado History
Big Horn Tornado History
This county-level tornado history page focuses on Big Horn, Wyoming. The records below identify 33 tornadoes from 1958 through 2017, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $352K, with 1 deaths and 2 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Big Horn, Wyoming
Top local patterns from the historical tornado records in this group.
Average 0.6 tornadoes per year (0.1/yr in last decade)
June is the peak tornado month with 20 recorded events
Deadliest tornado: F2 in Big Horn, Wyoming with 1 deaths
1997 was the most active year with 6 tornadoes
The 1990s had the most tornado activity (7 events)
Longest tornado: 10 miles in Big Horn, Wyoming
Widest tornado: 400.0 yards in Big Horn, Wyoming
Most tornadoes in one day: 3 on Jun 6, 1997
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Big Horn, Wyoming, June is the most active month with 20 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1997 was the most active year with 6 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 1978 with at least $275K 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 Big Horn, Wyoming.
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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 |
|---|---|---|---|---|---|---|---|
| August 2, 1985 | F3 | Big Horn, Wyoming | 0.2 mi | 10 yd | 0 | 0 | N/A |
| July 4, 1978 | F2 | Big Horn, Wyoming | 5 mi | 200 yd | 0 | 1 | $250K |
| June 3, 1958 | F2 | Big Horn, Wyoming | 0.2 mi | 17 yd | 0 | 0 | $25K |
| June 26, 1959 | F2 | Big Horn, Wyoming | 9.2 mi | 333 yd | 1 | 1 | $2K |
| July 9, 1962 | F2 | Big Horn, Wyoming | 0.5 mi | 17 yd | 0 | 0 | $2K |
| June 12, 1962 | F2 | Big Horn, Wyoming | 0.5 mi | 33 yd | 0 | 0 | $2K |
| July 24, 1967 | F2 | Big Horn, Wyoming | 0 mi | 50 yd | 0 | 0 | $2K |
| June 18, 1978 | F1 | Big Horn, Wyoming | 0 mi | 33 yd | 0 | 0 | $25K |
| June 1, 2009 | EF1 | Big Horn, Wyoming | 0.36 mi | 35 yd | 0 | 0 | $5K |
| July 20, 1974 | F1 | Big Horn, Wyoming | 0 mi | 33 yd | 0 | 0 | $2K |
| June 20, 1974 | F1 | Big Horn, Wyoming | 0.1 mi | 33 yd | 0 | 0 | $2K |
| June 20, 1974 | F1 | Big Horn, Wyoming | 0.1 mi | 33 yd | 0 | 0 | $2K |
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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.