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Hail history in Mount Olive, IL

Radar has detected major hail over the Mount Olive area on 21 days since 2011, up to 2.25" (hen egg size) on May 24, 2024. Source: NOAA Severe Weather Data Inventory radar signatures, which estimate hail aloft near Mount Olive, not confirmed ground reports.

Data last updated: July 28, 2026

Mount Olive sits in the same storm paths as nearby Mount Clare, which shares most of the hail days listed below.

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Every major hail day near Mount Olive

July 10, 2026up to 1.5" near Mount Olive · storm peaked at 2.25" (Mount Clare area)July 17, 2025up to 1.75" near Mount Olive · storm peaked at 2.5" (New Athens area)July 11, 2025up to 1.5" near Mount Olive · storm peaked at 2" (Rock Island Arsenal area)July 6, 2025up to 1.25" near Mount Olive · storm peaked at 1.5" (Madison area)September 21, 2024up to 1.75" near Mount Olive · storm peaked at 2.25" (Maunie area)May 24, 2024up to 2.25" near Mount Olive · storm peaked at 3.5" (Hamburg area)April 18, 2024up to 1.75" near Mount Olive · storm peaked at 3.5" (Karnak area)July 20, 2023up to 2" near Mount Olive · storm peaked at 2.25" (Staunton area)May 9, 2021up to 1.25" near Mount Olive · storm peaked at 1.75" (St. Peter area)May 23, 2019up to 1.5" near Mount Olive · storm peaked at 2" (Jerseyville area)December 1, 2018up to 2.25" near Mount Olive · storm peaked at 2.25" (Staunton area)July 1, 2018up to 1" near Mount Olive · storm peaked at 1.25" (Lena area)July 19, 2015up to 1" near Mount Olive · storm peaked at 2.5" (Medora area)May 15, 2015up to 1.25" near Mount Olive · storm peaked at 1.5" (Otterville area)June 16, 2014up to 1.25" near Mount Olive · storm peaked at 2.5" (Bowen area)April 28, 2014up to 1.75" near Mount Olive · storm peaked at 2.5" (Wood River area)June 29, 2013up to 1" near Mount Olive · storm peaked at 1.75" (Trenton area)August 2, 2012up to 1" near Mount Olive · storm peaked at 2.25" (Ramsey area)March 18, 2012up to 1.25" near Mount Olive · storm peaked at 2.25" (Tonica area)March 14, 2012up to 2.25" near Mount Olive · storm peaked at 2.5" (Valmeyer area)June 10, 2011up to 2.25" near Mount Olive · storm peaked at 4" (Barry area)

What this record means for a Mount Olive roof

The list above covers 21 radar-confirmed hail days over Mount Olive between 2011 and 2026. The largest signature recorded over the Mount Olive area was 2.25" (hen egg size) on May 24, 2024. 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 Mount Olive had hail big enough to damage roofs?

Radar has detected hail up to 2.25" (hen egg size) over the Mount Olive area, most recently on July 10, 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 Mount Olive?

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