Tornado History
St. Mary's Tornado History
This county-level tornado history page focuses on St. Mary's, Maryland. The records below identify 30 tornadoes from 1967 through 2025, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $4.5M, with 0 deaths and 4 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for St. Mary's, Maryland
Top local patterns from the historical tornado records in this group.
Average 0.5 tornadoes per year (0.6/yr in last decade)
July is the peak tornado month with 6 recorded events
Deadliest tornado: F1 in St. Mary's, Maryland with 0 deaths
2011 was the most active year with 4 tornadoes
The 2010s had the most tornado activity (11 events)
Longest tornado: 18 miles in St. Mary's, Maryland
Widest tornado: 800.0 yards in St. Mary's, Maryland
Most tornadoes in one day: 2 on May 8, 1984
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In St. Mary's, Maryland, July 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: 2011 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 1984 with at least $2.8M 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 St. Mary's, Maryland.
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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 |
|---|---|---|---|---|---|---|---|
| October 13, 1983 | F2 | St. Mary's, Maryland | 3 mi | 37 yd | 0 | 0 | $25K |
| May 8, 1984 | F1 | St. Mary's, Maryland | 3 mi | 80 yd | 0 | 3 | $2.5M |
| May 8, 1984 | F1 | St. Mary's, Maryland | 1 mi | 60 yd | 0 | 1 | $250K |
| July 1, 2025 | EF1 | St. Mary's, Maryland | 0.98 mi | 100 yd | 0 | 0 | $250K |
| July 13, 1996 | F1 | St. Mary's, Maryland | 1.2 mi | 100 yd | 0 | 0 | $100K |
| May 27, 2022 | EF1 | St. Mary's, Maryland | 2.82 mi | 100 yd | 0 | 0 | $100K |
| April 28, 2011 | EF1 | St. Mary's, Maryland | 3.37 mi | 150 yd | 0 | 0 | $35K |
| September 5, 1979 | F1 | St. Mary's, Maryland | 17.8 mi | 50 yd | 0 | 0 | $25K |
| June 27, 2015 | EF1 | St. Mary's, Maryland | 12.22 mi | 800 yd | 0 | 0 | $10K |
| October 5, 1995 | F1 | St. Mary's, Maryland | 0.75 mi | 75 yd | 0 | 0 | $5K |
| July 14, 2004 | F1 | St. Mary's, Maryland | 3 mi | 250 yd | 0 | 0 | $5K |
| January 27, 1967 | F1 | St. Mary's, Maryland | 0 mi | 50 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.