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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.
Key Tornado Statistics
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Check any addressKey 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
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 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.