Marshalltown, IA Tornado History — 131 Tornadoes Since 1950
How many tornadoes has Marshalltown, IA had?
Marshalltown has had 131 tornadoes on record within 25 miles since 1950, including 13 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Marshalltown?
The most recent tornado within 25 miles of Marshalltown was an Unrated on August 18, 2025.
When is tornado season in Marshalltown?
June is historically the peak month for tornadoes near Marshalltown, with 36 on record. April through June account for 74 of the 131 tornadoes on record near Marshalltown.
At a Glance
Recent Tornado Activity Near Marshalltown
The last 20 years of confirmed tornadoes within 25 miles — 39 total, averaging 1.9 per year over this window.
Preliminary tornado reports near Marshalltown since December 29, 2025
This is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
Emergency Management relayed reports of a brief tornado touchdown just south of Eldora with damage to a building. (DMX)
Within 25 miles of Marshalltown. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Casualties on Record Near Marshalltown
13 fatalities have been recorded within 25 miles of Marshalltown since 1950, across 3 events. 121 injuries have been reported across all events. 2022 was the deadliest year on record near Marshalltown.
The deadliest single event was an EF4 on March 5, 2022, which caused 6 fatalities along a 70.6-mile track.
Notable Tornadoes Near Marshalltown
What the record shows near Marshalltown
The 2000s were the busiest decade near Marshalltown, with 34 of the 131 confirmed tornadoes within 25 miles; the 2020s have produced 12 so far. The Marshalltown record runs from the 1950s to today.
Of the tornadoes rated near Marshalltown, 92 reached EF0 or EF1 and 34 reached EF2 or stronger. The most intense on record near Marshalltown is rated EF4, of which 4 are logged. A further 5 near Marshalltown are unrated — events NOAA logged before a damage survey assigned a scale.
Across the last 20 years Marshalltown has averaged 1.9 confirmed tornadoes a year within 25 miles, 39 in total. 2014 was the busiest of them with 10, and 6 of those years passed with none at all.