McHenry County, North Dakota tornadoes

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37confirmed tornadoes since NOAA records began in 1950 (the first here in 1965). Most recent: September 14, 2025, EFU. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in McHenry County

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The record

At a glance

Total371950 to 2025
Per year0.5average since 1950
Peak monthJune15 of 37
StrongestF2Jun 6, 1982
Deaths0whole paths, see note
Injuries0whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond McHenry County.

Seasons

When tornadoes hit here

By month

150 Jan: 0Feb: 0Mar: 0Apr: 0May: 4Jun: 15Jul: 4Aug: 9Sep: 5Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 15 of 37 tornadoes.

By time of day

90 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 0: 4: 13 PM: 7: 2: 96 PM: 2: 5: 29 PM: 2: 2: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 1: 0: 0: 0: 01970: 0: 0: 0: 0: 0: 0: 0: 1: 1: 11980: 3: 0: 1: 0: 0: 0: 0: 0: 1: 11990: 0: 0: 0: 0: 3: 1: 0: 3: 1: 22000: 1: 0: 1: 0: 1: 0: 0: 1: 3: 02010: 1: 0: 0: 2: 0: 0: 0: 0: 0: 02020: 0: 0: 0: 2: 0: 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.

By rating

EF0
23
EF1
6
EF2
1
Unknown
7

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.

The record

Notable tornadoes

Strongest

F2, June 6, 1982

10 mile path Longest path

10 miles, F2

June 6, 1982, whole path Widest

250 yards, EF1

June 22, 2007
Every tornado

All 37 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Sep 14, 2025EFU0.15 mi50 yd00
Sep 14, 2025EFU1.75 mi50 yd00
Sep 14, 2025EFU3.39 mi100 yd00
Sep 14, 2025EFU6.88 mi50 yd00
Sep 14, 2025EFU7.27 mi100 yd00
Aug 24, 2023EFU0.55 mi50 yd00
Aug 24, 2023EFU0.8 mi50 yd00
Jul 21, 2013EF04.55 mi50 yd00
Jun 25, 2013EF01.78 mi20 yd00
Jul 26, 2010EF02.82 mi30 yd00
Aug 11, 2008EF01.56 mi35 yd00
Aug 11, 2008EF01 mi35 yd00
Aug 11, 2008EF01 mi35 yd00
Jun 22, 2007EF10.5 mi250 yd00
Jun 6, 2004F03 mi40 yd00
Jun 23, 2002F12 mi50 yd00
Jun 11, 2000F03 mi30 yd00
Aug 15, 1999F03 mi20 yd00
Jun 3, 1999F00.5 mi10 yd00
May 17, 1998F00.1 mi30 yd00
Jun 28, 1997F00.2 mi10 yd00
Jun 28, 1997F04 mi20 yd00
Jun 28, 1997F00.2 mi10 yd00
Jun 20, 1995F00.3 mi20 yd00
Aug 26, 1994F02.5 mi20 yd00
Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.