Tornado History Map

Fergus County, Montana tornado history

29 tornadoes recorded in or across Fergus County from 1964 to 2005, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Fergus County

The Storm Prediction Center records 29 tornadoes whose paths touched Fergus County, Montana between 1964 and 2005. None of them is recorded as having killed anyone. The busiest month is June, with 13 tornadoes. The strongest was an F2 on 8 July 2002. The most recent was on 28 June 2005.

  • 29tornadoes
  • 0deaths
  • 3injuries
  • 67per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Fergus County?

RatingTornadoesShare
F0 / EF02172%
F1 / EF127%
F2 / EF2621%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Fergus County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 14 in 1990s.1960s11970s31980s21990s142000s9

The 2000s only run to 2005, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1960s1
1970s3
1980s2
1990s14
2000s9
Tornadoes by month
Bar chart of tornadoes by period. The most is 13 in Jun.Jan0Feb0Mar0Apr1May1Jun13Jul6Aug8Sep0Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr1
May1
Jun13
Jul6
Aug8
Sep0
Oct0
Nov0
Dec0

Records for Fergus County

  • Strongest: Montana tornado8 July 2002, F2, 10 miles long
  • Longest path: Montana tornado28 June 2002, F0, 11 miles long
  • Most recent: Montana tornado28 June 2005, F0, 0.3 miles long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

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