StormProof → hail seasons → Chicago → 2015
Chicago hail season 2015
60 NWS-recorded hail reports ≥1″ within 45 miles, across 7 storm days, max 4.75". Every one of those reports is a dated, located, citable official record — the context behind this market's 2015 claim volume.
Biggest storm days (2015, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| August 2, 2015 | 18 | 2.00" | COOK, KANE, DU PAGE, MCHENRY |
| June 8, 2015 | 13 | 1.75" | LAKE, LA PORTE, KANE, DU PAGE |
| June 10, 2015 | 11 | 4.75" | WILL, GRUNDY, PORTER, KENDALL |
| July 13, 2015 | 9 | 2.75" | LAKE, COOK, DU PAGE |
| July 17, 2015 | 3 | 1.00" | COOK, KANE |
“Hail 1.5 to 2.0 inches in diameter was reported across Palatine.”
— NWS event narrative, August 2, 2015 (NCEI Storm Events)
When it fell
Apr 6 · Jun 24 · Jul 12 · Aug 18
Wind context: the record also holds 31 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2015 — relevant where the dispute is wind vs hail causation.
Working a Chicago claim from 2015?
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.
Unlimited reports — Pro $99/mo Single report $29
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.