Hail history in Ottumwa, IA

Radar has detected major hail over the Ottumwa area on 22 days since 2011, up to 3.5" (baseball size or larger) on April 2, 2026. Source: NOAA Severe Weather Data Inventory radar signatures, which estimate hail aloft near Ottumwa, not confirmed ground reports.

Data last updated: July 28, 2026

Every major hail day near Ottumwa

April 2, 2026up to 3.5" near Ottumwa · storm peaked at 3.5" (Ottumwa area)April 16, 2024up to 1.5" near Ottumwa · storm peaked at 2.75" (Mount Sterling area)July 28, 2023up to 1.75" near Ottumwa · storm peaked at 3.25" (Ackley area)July 17, 2023up to 1.75" near Ottumwa · storm peaked at 3.25" (Malvern area)June 24, 2023up to 2.25" near Ottumwa · storm peaked at 4" (Douds area)April 4, 2023up to 1" near Ottumwa · storm peaked at 1.25" (Independence area)August 25, 2021up to 1" near Ottumwa · storm peaked at 1.75" (Rochester area)June 24, 2021up to 1.5" near Ottumwa · storm peaked at 3" (Percival area)September 7, 2020up to 1.25" near Ottumwa · storm peaked at 2.5" (Winfield area)July 19, 2020up to 1" near Ottumwa · storm peaked at 2.25" (Douds area)July 20, 2019up to 1.75" near Ottumwa · storm peaked at 2" (Ralston area)June 5, 2019up to 1" near Ottumwa · storm peaked at 4" (Douds area)August 16, 2018up to 1" near Ottumwa · storm peaked at 2" (Douds area)June 14, 2018up to 1.75" near Ottumwa · storm peaked at 3" (Luther area)September 21, 2017up to 1.25" near Ottumwa · storm peaked at 2.5" (Leighton area)August 29, 2016up to 1" near Ottumwa · storm peaked at 1.75" (Eldridge area)July 7, 2016up to 2" near Ottumwa · storm peaked at 2.5" (Northboro area)September 18, 2015up to 1.75" near Ottumwa · storm peaked at 2.25" (Hamburg area)April 7, 2015up to 1.5" near Ottumwa · storm peaked at 2.5" (Salem area)May 11, 2014up to 2" near Ottumwa · storm peaked at 4" (Tabor area)May 28, 2013up to 1" near Ottumwa · storm peaked at 2.25" (Crawfordsville area)October 22, 2012up to 1" near Ottumwa · storm peaked at 1.5" (Massena area)

What this record means for a Ottumwa roof

The list above covers 22 radar-confirmed hail days over Ottumwa between 2012 and 2026. The largest signature recorded over the Ottumwa area was 3.5" (baseball size or larger) on April 2, 2026. Radar put the local estimate at or above the 1" mark, the size generally capable of damaging asphalt shingles, on every one of those days.

Insurers and their adjusters can pull this same NOAA archive, so a date on this list is not news to the company handling a claim. What the archive cannot show is the condition of your specific roof, which is why dated photos and a written inspection report carry the weight in a dispute. Most homeowner policies also set a deadline to report storm damage, commonly one or two years from the date of loss, so a recent date above matters most if the roof was never inspected after it.

Get the roof inspected, free

Radar cannot confirm what hit your shingles; an inspection can, and it costs you nothing. Angi matches you with licensed local roofers who inspect for free and bid the work. Know how it works going in: the roofers pay Angi for the introduction, you pay nothing, and more than one company may call. That is the useful part: multiple written estimates are exactly what you want in hand before an adjuster visit or a contract.

Find licensed roofers near you on Angi

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Before you sign anything, read the contractor red flags: assignment-of-benefits traps, deductible games, and storm-chaser tells.

Common questions

Has Ottumwa had hail big enough to damage roofs?

Radar has detected hail up to 3.5" (baseball size or larger) over the Ottumwa area, most recently on April 2, 2026. Hail of 1" or larger is generally considered capable of damaging asphalt shingles.

Does this prove my roof was damaged?

No. Radar estimates hail aloft, accurate to roughly a mile, and cannot confirm what reached any specific roof. It is a strong reason to document your roof and check your policy's claim deadline after a listed date, not proof of damage.

How do I check my exact address in Ottumwa?

Use the free address lookup on this site. It searches the same NOAA radar archive within a radius you choose around your address, back to 2011.

If one of these dates is recent