Valley County, Montana tornadoes

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44confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: July 12, 2024, EF0. 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 Valley County

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The record

At a glance

Total441950 to 2025
Per year0.6average since 1950
Peak monthJuly22 of 44
StrongestF2Aug 4, 1962
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 Valley County.

Seasons

When tornadoes hit here

By month

220 Jan: 0Feb: 0Mar: 0Apr: 0May: 1Jun: 14Jul: 22Aug: 7Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

July is the peak month, with 22 of 44 tornadoes.

By time of day

150 12 AM: 0: 0: 13 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 112 PM: 0: 2: 13 PM: 1: 2: 56 PM: 1: 15: 59 PM: 9: 0: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 7:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 1: 0: 0: 0: 1: 01960: 0: 0: 1: 0: 0: 0: 0: 0: 0: 01970: 1: 0: 2: 0: 0: 3: 0: 0: 1: 01980: 0: 0: 0: 1: 0: 0: 0: 0: 5: 11990: 0: 0: 0: 0: 0: 5: 0: 1: 0: 22000: 4: 1: 3: 0: 0: 0: 0: 1: 0: 22010: 1: 1: 0: 0: 0: 0: 0: 0: 0: 02020: 1: 0: 1: 1: 3: 019501960197019801990200020102020

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
31
EF1
7
EF2
5
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.

The record

Notable tornadoes

Strongest

F2, August 4, 1962

42.9 mile path Longest path

42.9 miles, F2

August 4, 1962, whole path Widest

457 yards, EF2

July 18, 2022
Every tornado

All 44 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jul 12, 2024EF03 mi25 yd00
Jul 12, 2024EF02 mi25 yd00
Jul 12, 2024EF01 mi25 yd00
Jun 9, 2023EFU0.04 mi10 yd00
Jul 18, 2022EF28 mi457 yd00
May 20, 2020EF00.82 mi50 yd00
Jun 29, 2011EF00.01 mi1 yd00
Jun 21, 2010EF00.1 mi1 yd00
Jul 13, 2009EF00.27 mi5 yd00
Jul 13, 2009EF00.38 mi10 yd00
Aug 10, 2007EF10.25 mi10 yd00
Jul 8, 2002F00.5 mi50 yd00
Jul 8, 2002F00.1 mi50 yd00
Jul 8, 2002F00.1 mi50 yd00
Jul 20, 2001F029 mi100 yd00
Jul 10, 2000F00.5 mi50 yd00
Jul 3, 2000F00.5 mi50 yd00
Jul 2, 2000F00.5 mi200 yd00
Jun 7, 2000F01 mi100 yd00
Jun 21, 1999F10.2 mi100 yd00
Jun 21, 1999F00.1 mi40 yd00
Jul 17, 1997F00.3 mi60 yd00
Aug 26, 1995F00.1 mi10 yd00
Aug 26, 1995F00.1 mi10 yd00
Aug 26, 1995F00.1 mi10 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.