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Tornado History
Cass Tornado History
This county-level tornado history page focuses on Cass, Illinois. The records below identify 17 tornadoes from 1960 through 2025, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $510K, with 0 deaths and 1 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Cass, Illinois
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (1.0/yr in last decade)
June is the peak tornado month with 4 recorded events
Deadliest tornado: F2 in Cass, Illinois with 0 deaths
2021 was the most active year with 6 tornadoes
The 2020s had the most tornado activity (8 events)
Longest tornado: 12.75 miles in Cass, Illinois
Widest tornado: 200.0 yards in Cass, Illinois
Most tornadoes in one day: 3 on Jul 10, 2021
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Cass, Illinois, June 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: 2021 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 1960 with at least $250K 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, 1960 | F2 | Cass, Illinois | 11.8 mi | 100 yd | 0 | 1 | $250K |
| July 27, 1973 | F2 | Cass, Illinois | 0 mi | 33 yd | 0 | 0 | $25K |
| December 10, 2021 | EF2 | Cass, Illinois | 12.75 mi | 200 yd | 0 | 0 | N/A |
| December 1, 2018 | EF1 | Cass, Illinois | 4.23 mi | 200 yd | 0 | 0 | $200K |
| August 8, 1973 | F1 | Cass, Illinois | 0 mi | 33 yd | 0 | 0 | N/A |
| April 19, 2002 | F1 | Cass, Illinois | 2 mi | 40 yd | 0 | 0 | N/A |
| July 10, 2021 | EF1 | Cass, Illinois | 2.42 mi | 75 yd | 0 | 0 | N/A |
| December 1, 2018 | EF0 | Cass, Illinois | 0.64 mi | 50 yd | 0 | 0 | $35K |
| June 4, 1986 | F0 | Cass, Illinois | 3 mi | 100 yd | 0 | 0 | N/A |
| April 7, 1998 | F0 | Cass, Illinois | 0.3 mi | 50 yd | 0 | 0 | N/A |
| February 20, 2014 | EF0 | Cass, Illinois | 0.92 mi | 25 yd | 0 | 0 | N/A |
| July 10, 2021 | EF0 | Cass, Illinois | 3.2 mi | 75 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.