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The public record 1996 to today

Illinois hail history

The public federal storm record holds 1,583 days with hail somewhere in Illinois since 1996, 1,021 of them at 1.00″ or more, across 33,417 reports. The largest on record is 6.60″ on 10 March 2026 in KANKAKEE County. 327 cities have hail on record within 10 miles of their centre, and each has a page that says what was searched and which storm days more than one source carried. The wind family has its own index: Illinois wind history.

1,583

Days with hail on record, statewide

1,021

Days at 1.00″ or more

6.60in

Largest on record, Mar 2026

327

Cities with hail on record nearby

Hail by city in Illinois

Ranked by days with hail on record within 10 miles of each city's centre, then by population. Every place of five thousand people or more has a page; the busiest are listed here and the rest are a disclosure away.

  1. 01 Cahokia Heights 201 days
  2. 02 East St. Louis 192 days
  3. 03 Granite City 184 days
  4. 04 Swansea 179 days
  5. 05 O'Fallon 164 days
  6. 06 Fairview Heights 164 days
  7. 07 Columbia 164 days
  8. 08 Lisle 162 days
  9. 09 Darien 162 days
  10. 10 Collinsville 161 days
  11. 11 Shiloh 161 days
  12. 12 Belleville 159 days
  13. 13 Wood Dale 159 days
  14. 14 Itasca 158 days
  15. 15 Pontoon Beach 158 days
  16. 16 Romeoville 155 days
  17. 17 Westmont 155 days
  18. 18 Naperville 154 days
  19. 19 Lombard 153 days
  20. 20 Woodridge 153 days
  21. 21 Lockport 153 days
  22. 22 Hanover Park 152 days
  23. 23 Roselle 151 days
  24. 24 Wood River 151 days
  25. 25 Moline 150 days
  26. 26 Glen Carbon 150 days
  27. 27 Carol Stream 149 days
  28. 28 Addison 149 days
  29. 29 Elk Grove Village 149 days
  30. 30 Bensenville 149 days
Every place in Illinois (327)

Hail days by year in Illinois

Days with hail At 1.00″ or more

The busiest year on record is 2011, with 83 days of hail, 50 of them at 1.00″ or more.

Largest hail recorded in Illinois

Measured Detected, not measured

Largest hail recorded in Illinois: date, hail size, evidence and where the report was taken.
Date Size Evidence County
10 Mar 2026 6.60″ Ground observation KANKAKEE, IL
10 Mar 2026 6.10″ Ground observation Kankakee, IL
10 Mar 2026 6.10″ Ground observation Kankakee, IL
10 Mar 2026 6.10″ Ground observation KANKAKEE, IL
10 Mar 2026 6.00″ Ground observation Kankakee, IL
10 Mar 2026 6.00″ Ground observation KANKAKEE, IL
10 Mar 2026 5.50″ Ground observation LIVINGSTON, IL
10 Mar 2026 5.50″ Ground observation Livingston, IL

Hail days by month in Illinois

Hail here is a May matter: 295 of the days on record fall in that month, all years together.

The next step

Get the hail report for an address in Illinois

The figures on this page are the record across Illinois: enough to know there is something to cite, and from where. None of it says what reached one roof.

Run the address and the same archive is searched at the property: the storm, the date, the measured size, the distance and bearing from the roof, and the federal record each figure came from, in a document that states its own method. Ready in minutes.

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How this page is made

What counted
Every hail report in the archive filed under Illinois by its source, with the cities ranked by the reports within 10 miles of each centre. A hail day is a calendar date with at least one report: four sources describing one storm are one afternoon of hail, not four.
Measured and detected
A report from a person or an instrument is measured. A radar-derived size is a detection and is marked as one, here and in every document we issue. The two are never added together.
Severe
A day counts as severe when its largest report reached 1.00″, the National Weather Service criterion. Smaller hail is still on the record, and still on this page.
What this is not
Neighbouring places share reports, so counts are not exclusive. This page is the record around a place; it is not a report on any property, and it states no opinion about one.
Terms used on this page
Storm day, independent source, measured and detected: each term this page uses is defined in the glossary as the report prints it.
The record
Searched from 1996 to today. Compiled 2 November 2026 and rebuilt daily as the archive deepens. Records are reproduced as the federal sources published them. The coverage page states what the record holds, by kind and by year.

About this record

Everything here is reproduced from public federal and volunteer weather records, as the agencies and observer networks that publish them released it. Titan Weather compiles the record; it does not observe the weather, and it is not affiliated with any source it cites.

No archive holds everything. Storms cross places where nobody is standing, instruments and observers cover some areas better than others, sources revise their records, and recent reports can take weeks to arrive and settle. Coverage also thins as the years go back: an early quiet stretch may describe who was watching rather than what the weather did. Where this page shows nothing, nothing was found in the sources searched, within the period and area it states. That is not a finding that no weather occurred.

A record sits where its source filed it. Reports made from the ground are commonly logged against a town, a landmark or an offset from one rather than the spot where the measurement was taken, so any distance shown for one carries that source's own location error. Radar detections and warning geometry are instrument-located and do not.

These pages describe the public record near a place or on a date. They do not establish what reached any particular property, and nothing here is insurance, legal or engineering advice.