StormProof → hail seasons → Chicago → 2013
Chicago hail season 2013
49 NWS-recorded hail reports ≥1″ within 45 miles, across 15 storm days, max 2.75". Every one of those reports is a dated, located, citable official record — the context behind this market's 2013 claim volume.
Biggest storm days (2013, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| June 12, 2013 | 17 | 1.75" | KANKAKEE, GRUNDY, WILL, COOK |
| November 17, 2013 | 4 | 1.75" | WILL, COOK |
| August 30, 2013 | 4 | 1.00" | COOK, LAKE |
| September 11, 2013 | 3 | 2.00" | WILL |
| July 10, 2013 | 3 | 1.75" | LAKE, PORTER |
“Multiple reports of hail of to the size of quarters were received between Romeoville and Lockport. Reports include penny size hail at the intersection of Romeo Road and Frieh Drive, quarter size hail at 135th Street and Smith Road, and penny size hail near State Street and Route 7.”
— NWS event narrative, June 12, 2013 (NCEI Storm Events)
When it fell
Jan 3 · Apr 2 · May 4 · Jun 20 · Jul 5 · Aug 4 · Sep 4 · Oct 3 · Nov 4
Wind context: the record also holds 135 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2013 — relevant where the dispute is wind vs hail causation.
Working a Chicago claim from 2013?
These are aggregates. A claim file needs the per-address record: every recorded event within 1, 3 and 10 miles of the property, distances, official narratives, and citations an adjuster can check line by line. That's the report — generated in seconds, hosted on HailEvidence (the neutral evidence surface), formatted as an insurance-appeal attachment.
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Provenance
Final counts: NCEI Storm Events Database, file vintage c20260527, hail events with recorded magnitude ≥1.00″ and point coordinates within 45 miles of the Chicago anchor. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. Spotted an error? Email the address on our terms page and we correct against the source.