Maryland tornadoes

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425 confirmed tornadoes since 1950. Most recent: July 31, 2025, EF0. 2026 so far: 12 preliminary reports preliminary

Counties with the most tornadoes

CountyTornadoes since 1950Per 1,000 sq mi
Frederick County3858
St. Mary's County3495
Charles County3270
Baltimore County3152
Anne Arundel County2970
Montgomery County2959
Prince George's County2858
Carroll County2658
Harford County2659
Calvert County1989
Cecil County1955
Howard County1976
Washington County1533
Worcester County1532
Dorchester County1426

When tornadoes hit here

By month

860 Jan: 3Feb: 9Mar: 8Apr: 43May: 62Jun: 84Jul: 86Aug: 47Sep: 38Oct: 21Nov: 23Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

July is the peak month, with 86 of 425 tornadoes.

By time of day

570 12 AM: 3: 4: 53 AM: 1: 7: 146 AM: 5: 4: 59 AM: 4: 4: 1512 PM: 26: 54: 413 PM: 57: 33: 566 PM: 42: 20: 79 PM: 4: 9: 512 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 3:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

270 1950: 1: 0: 4: 2: 2: 0: 0: 0: 2: 21960: 2: 4: 3: 2: 0: 2: 2: 5: 0: 21970: 0: 3: 1: 4: 4: 10: 4: 2: 9: 81980: 3: 2: 1: 2: 5: 0: 0: 0: 0: 11990: 10: 1: 13: 6: 21: 24: 21: 4: 11: 32000: 8: 10: 14: 10: 20: 0: 3: 2: 8: 102010: 4: 27: 16: 10: 2: 4: 3: 4: 2: 62020: 20: 8: 6: 3: 12: 519501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 12 preliminary reports.

By rating

EF0
191
EF1
186
EF2
38
EF3
7
EF4
2
Unknown
1

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

Notable tornadoes

Deadliest

F4, April 28, 2002

3 deaths Longest path

38 miles, F4

April 28, 2002

Most recent tornadoes

DateRatingPath lengthWidthDeathsInjuries
Jul 31, 2025EF00.13 mi25 yd00
Jul 1, 2025EF10.98 mi100 yd00
Jun 18, 2025EF00.15 mi75 yd00
May 16, 2025EF111.3 mi600 yd00
May 16, 2025EF14.34 mi75 yd00
Jun 5, 2024EF10.94 mi110 yd00
Jun 5, 2024EF00.43 mi90 yd00
Jun 5, 2024EF13.34 mi175 yd00
Jun 5, 2024EF00.92 mi75 yd00
Jun 5, 2024EF24.42 mi100 yd00
Jun 5, 2024EF24.42 mi100 yd00
Jun 5, 2024EF00.69 mi100 yd00
Jun 5, 2024EF115.16 mi150 yd05
Jun 5, 2024EF18.83 mi150 yd00
Jun 5, 2024EF00.59 mi50 yd00
May 11, 2024EF13.11 mi75 yd00
May 11, 2024EF13.05 mi75 yd00
Apr 22, 2023EF06.69 mi50 yd00
Apr 22, 2023EF00.44 mi50 yd00
Apr 1, 2023EF15.49 mi125 yd00

Every Maryland county

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025. A tornado that crossed a state line counts in each state it touched.