Sioux City, Iowa Storm Reports

A live 12-month storm history for Sioux City, Iowa — including hail size, wind speed, and tornado confirmations from official NOAA sources. Use it to prove date-of-loss on insurance claims and target canvassing routes in Sioux City neighborhoods hit hardest.

Storm Activity Near Sioux City (Last 12 Months)

  • 235 total storm reports
  • 78 hail reports (max 2.75" diameter)
  • 139 wind reports (max 88 mph)
  • 13 tornado reports
  • 31 severe weather days
  • Most recent storm: 2026-08-13

Nearby Storm Reports in Iowa

More Iowa Coverage

Frequently Asked Questions

What's the fastest way to canvass hail damage in Sioux City?

Pull up the Sioux City storm map, filter to the most recent hail event, and drive the affected blocks the next morning. Roof Flow Pro logs every door knock so Iowa sales reps don't work the same street twice.

Is the Sioux City storm report data official?

Yes — every report on the Sioux City, Iowa page comes from NOAA's Storm Prediction Center and the National Weather Service Local Storm Reports feed, the same sources insurance carriers reference.

When is storm season in Sioux City, Iowa?

Sioux City's severe weather season typically runs from spring through early fall, with peak hail and wind activity from March through August. Roof Flow Pro alerts contractors to active storms in real time.

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