StormProof → hail seasons → Dayton → 2011
Dayton hail season 2011
30 NWS-recorded hail reports ≥1″ within 25 miles, across 8 storm days, max 3.00". 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 25, 2011 | 18 | 3.00" | BUTLER, MONTGOMERY, GREENE, PREBLE |
| July 11, 2011 | 3 | 1.75" | MONTGOMERY, CLARK |
| June 10, 2011 | 2 | 1.00" | WARREN, MONTGOMERY |
| April 20, 2011 | 2 | 1.00" | PREBLE, GREENE |
| March 23, 2011 | 2 | 1.25" | MIAMI |
“Two individuals, one child and one adult, were injured by large hail while running for cover. A truck also sustained damage due to the hail.”
— NWS event narrative, May 25, 2011 (NCEI Storm Events)
When it fell
Mar 2 · Apr 3 · May 19 · Jun 3 · Jul 3
Wind context: the record also holds 85 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 Dayton 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 Dayton 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.