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Hail history in Thompson, IA

Radar has detected major hail over the Thompson area on 28 days since 2011, up to 4" (baseball size or larger) on July 23, 2016. Source: NOAA Severe Weather Data Inventory radar signatures, which estimate hail aloft near Thompson, not confirmed ground reports.

Data last updated: July 27, 2026

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Every major hail day near Thompson

April 12, 2026up to 3" near Thompson · storm peaked at 3" (Thompson area)September 15, 2025up to 1" near Thompson · storm peaked at 2.75" (La Porte City area)June 20, 2025up to 2.25" near Thompson · storm peaked at 3" (Fertile area)September 19, 2024up to 3" near Thompson · storm peaked at 3.25" (Riceville area)June 3, 2024up to 1" near Thompson · storm peaked at 2.5" (Chatsworth area)July 10, 2023up to 1" near Thompson · storm peaked at 3" (Boyden area)July 23, 2022up to 2.25" near Thompson · storm peaked at 2.5" (Monticello area)June 25, 2022up to 1.5" near Thompson · storm peaked at 4" (Patterson area)August 31, 2020up to 1" near Thompson · storm peaked at 1.5" (New Market area)June 18, 2020up to 1.5" near Thompson · storm peaked at 1.5" (Thompson area)September 12, 2019up to 1" near Thompson · storm peaked at 2.5" (St. Lucas area)July 18, 2019up to 1.5" near Thompson · storm peaked at 2.5" (Nora Springs area)August 27, 2018up to 1.5" near Thompson · storm peaked at 3.25" (Orange City area)July 25, 2018up to 1.75" near Thompson · storm peaked at 2.25" (Hanlontown area)July 4, 2018up to 1.75" near Thompson · storm peaked at 3.25" (Harris area)June 16, 2017up to 1.75" near Thompson · storm peaked at 3" (Zearing area)September 9, 2016up to 1.75" near Thompson · storm peaked at 2" (Hamburg area)August 16, 2016up to 1.5" near Thompson · storm peaked at 2.25" (Orange City area)July 23, 2016up to 4" near Thompson · storm peaked at 4" (Ackley area)June 21, 2016up to 1.5" near Thompson · storm peaked at 2.5" (Centerville area)June 20, 2016up to 1.25" near Thompson · storm peaked at 2.25" (Lewis area)July 24, 2015up to 3.5" near Thompson · storm peaked at 3.5" (Thompson area)July 18, 2015up to 1" near Thompson · storm peaked at 1.75" (Titonka area)August 1, 2013up to 2.25" near Thompson · storm peaked at 2.25" (Thompson area)August 8, 2012up to 2.5" near Thompson · storm peaked at 4" (Breda area)August 4, 2012up to 1.75" near Thompson · storm peaked at 3" (Pella area)May 5, 2012up to 1.75" near Thompson · storm peaked at 4" (Floyd area)April 10, 2011up to 1.5" near Thompson · storm peaked at 2.75" (Lake Mills area)

What this record means for a Thompson roof

The list above covers 28 radar-confirmed hail days over Thompson between 2011 and 2026. The largest signature recorded over the Thompson area was 4" (baseball size or larger) on July 23, 2016. 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 Thompson had hail big enough to damage roofs?

Radar has detected hail up to 4" (baseball size or larger) over the Thompson area, most recently on April 12, 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 Thompson?

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