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Tornado History

Frederick Tornado History

This county-level tornado history page focuses on Frederick, Maryland. The records below identify 36 tornadoes from 1952 through 2021, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $2.8M, with 0 deaths and 1 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes36
Total Deaths0
Total Injuries1
Property Damage$2.8M
Avg Length2.7 mi
Avg Width115 yd

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Key Tornado Facts for Frederick, Maryland

Top local patterns from the historical tornado records in this group.

Average 0.5 tornadoes per year (0.4/yr in last decade)
May is the peak tornado month with 9 recorded events
Deadliest tornado: F1 in Frederick, Maryland with 0 deaths
2004 was the most active year with 5 tornadoes
The 2000s had the most tornado activity (8 events)
Longest tornado: 14.8 miles in Frederick, Maryland
Widest tornado: 600.0 yards in Frederick, Maryland
Most tornadoes in one day: 3 on Sep 17, 2004

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Frederick, Maryland, May is the most active month with 9 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

5420

Summary: 2004 was the most active year with 5 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F2
F3

Summary: F1 tornadoes are the most common in this group, with 16 recorded events.

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.

$800K$80K$8K$0

Summary: The highest reported property damage year in this group is 1999 with at least $800K in NOAA-listed property damage.

Historical Track Sketch

F3 May 22, 19831983F2 July 31, 19781978F2 September 17, 20042004F2 August 28, 19781978F1 August 14, 19991999EF1 February 7, 20202020F1 March 3, 19721972F1 May 13, 19901990F1 September 17, 20042004F1 June 4, 19961996F1 July 19, 19961996F1 September 17, 20042004EF1 April 16, 20112011EF1 April 16, 20112011F1 April 5, 1952F1 April 5, 1952F1 July 19, 1963F1 February 13, 1966F1 June 28, 1966EF1 April 16, 2011F1 November 19, 1960F1 April 16, 1961F1 May 30, 1982F1 June 14, 2004EF1 July 31, 2009EF1 July 31, 2009EF0 May 3, 2021EF0 May 3, 2021EF0 May 30, 2019EF0 May 17, 2011F0 June 6, 2002EF0 August 12, 2010F0 June 16, 1998EF0 June 20, 2015F0 May 3, 1954F0 May 25, 2004© OpenStreetMap contributors

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.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
May 22, 1983F3Frederick, Maryland1 mi37 yd00$25K
July 31, 1978F2Frederick, Maryland1.5 mi100 yd00$25K
September 17, 2004F2Frederick, Maryland3 mi200 yd00$5K
August 28, 1978F2Frederick, Maryland14.8 mi33 yd00N/A
August 14, 1999F1Frederick, Maryland3 mi50 yd00$800K
February 7, 2020EF1Frederick, Maryland6.74 mi150 yd00$340K
March 3, 1972F1Frederick, Maryland1 mi100 yd00$250K
May 13, 1990F1Frederick, Maryland0.5 mi33 yd00$250K
September 17, 2004F1Frederick, Maryland3 mi150 yd00$200K
June 4, 1996F1Frederick, Maryland1 mi65 yd00$150K
July 19, 1996F1Frederick, Maryland2.2 mi200 yd00$80K
September 17, 2004F1Frederick, Maryland7 mi100 yd00$50K

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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.