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Tornado History
Williamson Tornado History
This county-level tornado history page focuses on Williamson, Illinois. The records below identify 21 tornadoes from 1957 through 2025, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $303.8M, with 10 deaths and 214 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Williamson, Illinois
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (1.1/yr in last decade)
April is the peak tornado month with 7 recorded events
Deadliest tornado: F4 in Williamson, Illinois with 10 deaths
2018 was the most active year with 4 tornadoes
The 2010s had the most tornado activity (9 events)
Longest tornado: 17 miles in Williamson, Illinois
Widest tornado: 900.0 yards in Williamson, Illinois
Most tornadoes in one day: 3 on Apr 3, 2018
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Williamson, Illinois, April is the most active month with 7 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2018 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 1982 with at least $250.0M 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 29, 1982 | F4 | Williamson, Illinois | 17 mi | 400 yd | 10 | 181 | $250.0M |
| May 16, 2025 | EF4 | Williamson, Illinois | 16.28 mi | 900 yd | 0 | 7 | $25.0M |
| December 18, 1957 | F4 | Williamson, Illinois | 4.5 mi | 300 yd | 0 | 10 | $2.5M |
| November 19, 1991 | F3 | Williamson, Illinois | 1.5 mi | 70 yd | 0 | 16 | $25.0M |
| April 2, 2024 | EF2 | Williamson, Illinois | 6.66 mi | 250 yd | 0 | 0 | $300K |
| June 2, 1973 | F2 | Williamson, Illinois | 0 mi | 33 yd | 0 | 0 | $250K |
| February 29, 2012 | EF2 | Williamson, Illinois | 14.91 mi | 300 yd | 0 | 0 | $100K |
| April 3, 2018 | EF1 | Williamson, Illinois | 9.98 mi | 125 yd | 0 | 0 | $250K |
| April 2, 2024 | EF1 | Williamson, Illinois | 6.21 mi | 250 yd | 0 | 0 | $130K |
| June 12, 1998 | F1 | Williamson, Illinois | 2 mi | 100 yd | 0 | 0 | $100K |
| October 31, 2013 | EF1 | Williamson, Illinois | 6.43 mi | 175 yd | 0 | 0 | $40K |
| April 3, 2018 | EF1 | Williamson, Illinois | 1.93 mi | 150 yd | 0 | 0 | $40K |
Want to check a home, business, or exact property?Search any address to compare nearby historical tornado tracks against that specific location.
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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.