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Hail history in Walnut, IA

Radar has detected major hail over the Walnut area on 24 days since 2011, up to 4" (baseball size or larger) on June 30, 2014. Source: NOAA Severe Weather Data Inventory radar signatures, which estimate hail aloft near Walnut, not confirmed ground reports.

Data last updated: July 27, 2026

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Every major hail day near Walnut

June 1, 2026up to 2.5" near Walnut · storm peaked at 3" (Neola area)August 10, 2025up to 1.25" near Walnut · storm peaked at 2" (Glenwood area)June 24, 2023up to 2" near Walnut · storm peaked at 4" (Douds area)June 7, 2022up to 2.25" near Walnut · storm peaked at 4" (Malvern area)April 29, 2022up to 1" near Walnut · storm peaked at 1.5" (Salix area)April 23, 2022up to 2" near Walnut · storm peaked at 2" (Walnut area)March 5, 2022up to 2.25" near Walnut · storm peaked at 3.5" (Orient area)December 15, 2021up to 1.25" near Walnut · storm peaked at 1.75" (Glenwood area)August 7, 2021up to 1" near Walnut · storm peaked at 2.25" (Harpers Ferry area)May 24, 2020up to 1" near Walnut · storm peaked at 1.75" (Bartlett area)July 3, 2019up to 1.25" near Walnut · storm peaked at 2.25" (Creston area)September 19, 2018up to 1.25" near Walnut · storm peaked at 2.75" (Lake City area)April 13, 2018up to 1.75" near Walnut · storm peaked at 3.5" (Paton area)August 1, 2016up to 1" near Walnut · storm peaked at 1.75" (Lenox area)May 13, 2016up to 1.5" near Walnut · storm peaked at 1.75" (Wiota area)August 9, 2015up to 2" near Walnut · storm peaked at 4" (Dedham area)June 30, 2014up to 4" near Walnut · storm peaked at 4" (Norwalk area)June 26, 2014up to 1.5" near Walnut · storm peaked at 2.25" (Boyden area)July 21, 2013up to 1" near Walnut · storm peaked at 2.25" (Murray area)May 28, 2012up to 1" near Walnut · storm peaked at 2.25" (Le Claire area)August 28, 2011up to 1.25" near Walnut · storm peaked at 1.75" (Underwood area)July 16, 2011up to 1.75" near Walnut · storm peaked at 2.25" (Shelby area)June 20, 2011up to 2" near Walnut · storm peaked at 3.75" (Missouri Valley area)March 22, 2011up to 1.75" near Walnut · storm peaked at 4" (Logan area)

What this record means for a Walnut roof

The list above covers 24 radar-confirmed hail days over Walnut between 2011 and 2026. The largest signature recorded over the Walnut area was 4" (baseball size or larger) on June 30, 2014. 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

Referral disclosure: this site may earn a fee if you request quotes through this link. That does not change what you pay, and no contractor pays to be described a certain way here.

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

Common questions

Has Walnut had hail big enough to damage roofs?

Radar has detected hail up to 4" (baseball size or larger) over the Walnut area, most recently on June 1, 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 Walnut?

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