StormProof → hail seasons → Rockford → 2011
Rockford hail season 2011
13 NWS-recorded hail reports ≥1″ within 25 miles, across 6 storm days, max 1.75". Every one of those reports is a dated, located, citable official record — the context behind this market's 2011 claim volume.
Biggest storm days (2011, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| May 22, 2011 | 5 | 1.50" | OGLE, BOONE, WINNEBAGO |
| June 8, 2011 | 3 | 1.75" | BOONE, WINNEBAGO |
| August 20, 2011 | 2 | 1.25" | WINNEBAGO, ROCK |
| May 11, 2011 | 1 | 1.00" | WINNEBAGO |
| April 3, 2011 | 1 | 1.00" | OGLE |
“Numerous reports of large hail up to walnut size were received from the city of Rockford as a severe line of thunderstorms moved across the city. Some of the specific reports include: quarter size hail approximately four miles northwest of Rockford; quarter size hail at the intersection of Huffman Boulevard and Auburn street; penny to nickel size hail just east of downtown Rockford; quarter size hail at the intersec”
— NWS event narrative, May 22, 2011 (NCEI Storm Events)
When it fell
Mar 1 · Apr 1 · May 6 · Jun 3 · Aug 2
Wind context: the record also holds 54 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2011 — relevant where the dispute is wind vs hail causation.
Working a Rockford claim from 2011?
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 25 miles of the Rockford 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.