Tornado History
St. Mary Tornado History
This county-level tornado history page focuses on St. Mary, Louisiana. The records below identify 22 tornadoes from 1952 through 2018, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $3.7M, with 0 deaths and 25 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for St. Mary, Louisiana
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (0.4/yr in last decade)
September is the peak tornado month with 5 recorded events
Deadliest tornado: F2 in St. Mary, Louisiana with 0 deaths
1961 was the most active year with 2 tornadoes
The 2010s had the most tornado activity (7 events)
Longest tornado: 6.4 miles in St. Mary, Louisiana
Widest tornado: 100.0 yards in St. Mary, Louisiana
Most tornadoes in one day: 2 on Sep 10, 1961
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In St. Mary, Louisiana, September is the most active month with 5 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1961 was the most active year with 2 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 1952 with at least $2.5M 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 St. Mary, Louisiana.
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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 |
|---|---|---|---|---|---|---|---|
| March 17, 1970 | F3 | St. Mary, Louisiana | 1 mi | 50 yd | 0 | 2 | $250K |
| April 4, 1952 | F2 | St. Mary, Louisiana | 6.4 mi | 20 yd | 0 | 3 | $2.5M |
| September 10, 1961 | F2 | St. Mary, Louisiana | 1 mi | 100 yd | 0 | 16 | $25K |
| September 16, 1971 | F2 | St. Mary, Louisiana | 0.5 mi | 50 yd | 0 | 0 | $25K |
| January 2, 1999 | F1 | St. Mary, Louisiana | 2 mi | 100 yd | 0 | 1 | $75K |
| February 23, 2016 | EF1 | St. Mary, Louisiana | 2.62 mi | 50 yd | 0 | 0 | $40K |
| April 23, 1995 | F1 | St. Mary, Louisiana | 0.5 mi | 20 yd | 0 | 0 | $30K |
| September 8, 1974 | F1 | St. Mary, Louisiana | 0 mi | 33 yd | 0 | 0 | $25K |
| July 7, 1982 | F1 | St. Mary, Louisiana | 0.1 mi | 10 yd | 0 | 0 | $25K |
| July 8, 1982 | F1 | St. Mary, Louisiana | 1 mi | 10 yd | 0 | 0 | $25K |
| September 12, 1984 | F1 | St. Mary, Louisiana | 0 mi | 33 yd | 0 | 0 | $25K |
| May 8, 1991 | F1 | St. Mary, Louisiana | 1.5 mi | 30 yd | 0 | 1 | $25K |
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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.