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Hail history in Harvard, IL

Radar has detected major hail over the Harvard area on 21 days since 2011, up to 4" (baseball size or larger) on September 7, 2021. Source: NOAA Severe Weather Data Inventory radar signatures, which estimate hail aloft near Harvard, not confirmed ground reports.

Data last updated: July 28, 2026

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Every major hail day near Harvard

April 15, 2026up to 2.25" near Harvard · storm peaked at 3.5" (Lawrence area)August 18, 2025up to 1.25" near Harvard · storm peaked at 2" (Genoa area)July 23, 2024up to 1.5" near Harvard · storm peaked at 2" (Hartland area)May 21, 2024up to 1.25" near Harvard · storm peaked at 2.25" (Apple River area)May 7, 2024up to 2" near Harvard · storm peaked at 4" (Homer Glen area)July 5, 2022up to 2" near Harvard · storm peaked at 2.5" (Genoa area)July 4, 2022up to 2" near Harvard · storm peaked at 2.75" (Schaumburg area)September 7, 2021up to 4" near Harvard · storm peaked at 4" (Harvard area)August 24, 2021up to 1.5" near Harvard · storm peaked at 1.75" (Northbrook area)August 10, 2021up to 1.75" near Harvard · storm peaked at 2" (Savanna area)July 28, 2021up to 1" near Harvard · storm peaked at 2" (New Bedford area)November 10, 2020up to 1.25" near Harvard · storm peaked at 2" (Winnebago area)June 27, 2019up to 1" near Harvard · storm peaked at 1.5" (Bolingbrook area)August 5, 2018up to 1.5" near Harvard · storm peaked at 2" (Scales Mound area)August 10, 2017up to 1.75" near Harvard · storm peaked at 3.25" (Albany area)May 15, 2017up to 1.25" near Harvard · storm peaked at 2" (Loves Park area)September 3, 2015up to 1.25" near Harvard · storm peaked at 1.5" (Hartland area)July 18, 2015up to 2.5" near Harvard · storm peaked at 2.5" (Harvard area)September 4, 2014up to 1.25" near Harvard · storm peaked at 2.5" (Lake Carroll area)April 12, 2014up to 2" near Harvard · storm peaked at 3.25" (Rockford area)August 30, 2013up to 2.25" near Harvard · storm peaked at 3.5" (Poplar Grove area)

What this record means for a Harvard roof

The list above covers 21 radar-confirmed hail days over Harvard between 2013 and 2026. The largest signature recorded over the Harvard area was 4" (baseball size or larger) on September 7, 2021. 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.

Nearby towns in the same storm paths

Hail swaths are tens of miles wide, so these communities near Harvard share most of the same radar-detected hail days.

Big Foot Prairie (16 days)Lawrence (14 days)

Common questions

Has Harvard had hail big enough to damage roofs?

Radar has detected hail up to 4" (baseball size or larger) over the Harvard area, most recently on April 15, 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 Harvard?

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