Tornado History
McHenry Tornado History
This county-level tornado history page focuses on McHenry, Illinois. The records below identify 26 tornadoes from 1958 through 2024, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $32.8M, with 7 deaths and 120 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for McHenry, Illinois
Top local patterns from the historical tornado records in this group.
Average 0.4 tornadoes per year (0.7/yr in last decade)
April is the peak tornado month with 6 recorded events
Deadliest tornado: F4 in McHenry, Illinois with 6 deaths
2015 was the most active year with 3 tornadoes
The 2010s had the most tornado activity (6 events)
Longest tornado: 26.2 miles in McHenry, Illinois
Widest tornado: 1,200.0 yards in McHenry, Illinois
Most tornadoes in one day: 2 on Apr 21, 1967
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In McHenry, Illinois, April is the most active month with 6 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2015 was the most active year with 3 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 1967 with at least $27.5M 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 McHenry, Illinois.
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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 |
|---|---|---|---|---|---|---|---|
| April 21, 1967 | F4 | McHenry, Illinois | 14 mi | 1200 yd | 0 | 40 | $25.0M |
| April 21, 1967 | F4 | McHenry, Illinois | 4.3 mi | 150 yd | 0 | 3 | $2.5M |
| April 11, 1965 | F4 | McHenry, Illinois | 9.1 mi | 400 yd | 6 | 75 | N/A |
| January 7, 2008 | EF3 | McHenry, Illinois | 6.3 mi | 100 yd | 0 | 1 | $2.0M |
| October 9, 1958 | F2 | McHenry, Illinois | 26.2 mi | 33 yd | 1 | 0 | $2.5M |
| October 8, 1959 | F2 | McHenry, Illinois | 2 mi | 90 yd | 0 | 1 | $250K |
| April 19, 1963 | F2 | McHenry, Illinois | 0 mi | 33 yd | 0 | 0 | $250K |
| August 15, 1978 | F2 | McHenry, Illinois | 2 mi | 100 yd | 0 | 0 | $250K |
| June 19, 2009 | EF1 | McHenry, Illinois | 0.74 mi | 75 yd | 0 | 0 | $75K |
| May 19, 1996 | F1 | McHenry, Illinois | 0.8 mi | 50 yd | 0 | 0 | N/A |
| April 9, 2015 | EF1 | McHenry, Illinois | 0.32 mi | 30 yd | 0 | 0 | N/A |
| May 17, 2017 | EF1 | McHenry, Illinois | 1.94 mi | 100 yd | 0 | 0 | N/A |
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Related Location Pages
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- Big Foot tornado history4
- Lawrence tornado history2
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- Union tornado history1
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- Alden tornado history1
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- McCullom Lake tornado history1
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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.