Tornado History Map

Dubuque County, Iowa tornado history

37 tornadoes recorded in or across Dubuque County from 1954 to 2025, 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 Dubuque County

The Storm Prediction Center records 37 tornadoes whose paths touched Dubuque County, Iowa between 1954 and 2025. None of them is recorded as having killed anyone. The busiest month is June, with 8 tornadoes. The strongest was an F4 on 13 March 1990. The most recent was on 11 July 2025.

  • 37tornadoes
  • 0deaths
  • 4injuries
  • 608per 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 Dubuque County?

RatingTornadoesShare
F0 / EF01027%
F1 / EF11438%
F2 / EF2924%
F3 / EF325%
F4 / EF413%
F5 / EF500%
Unknown rating13%

Dubuque County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 8 in 1990s.1950s31960s71970s41980s31990s82000s22010s42020s6

The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s3
1960s7
1970s4
1980s3
1990s8
2000s2
2010s4
2020s6
Tornadoes by month
Bar chart of tornadoes by period. The most is 8 in Jun.Jan0Feb0Mar6Apr2May6Jun8Jul7Aug4Sep3Oct0Nov0Dec1
Show the numbers
PeriodCount
Jan0
Feb0
Mar6
Apr2
May6
Jun8
Jul7
Aug4
Sep3
Oct0
Nov0
Dec1

Records for Dubuque County

  • Strongest: Prairieburg, Iowa tornado13 March 1990, F4, 19 miles long
  • Longest path: Iowa tornado28 September 1972, F2, 3 injuries, 64.5 miles long
  • Most recent: Iowa tornado11 July 2025, EF1, 0.9 miles long

Notable tornadoes in Dubuque County

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

More in Iowa

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