StormProof → hail seasons → Oklahoma City → 2021
Oklahoma City hail season 2021
63 NWS-recorded hail reports ≥1″ within 35 miles, across 10 storm days, max 3.00". Every one of those reports is a dated, located, citable official record — the context behind this market's 2021 claim volume.
Biggest storm days (2021, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| April 28, 2021 | 18 | 3.00" | MCCLAIN, GRADY, CLEVELAND, POTTAWATOMIE |
| October 10, 2021 | 10 | 3.00" | MCCLAIN, CLEVELAND |
| November 10, 2021 | 9 | 1.75" | OKLAHOMA, KINGFISHER, LOGAN |
| April 9, 2021 | 7 | 2.75" | GRADY, OKLAHOMA, KINGFISHER |
| October 14, 2021 | 6 | 2.00" | CANADIAN, OKLAHOMA |
“Significant damage to cars at dealerships between Robinson and main along I-35 in Norman.”
— NWS event narrative, April 28, 2021 (NCEI Storm Events)
When it fell
Apr 28 · May 7 · Jul 3 · Oct 16 · Nov 9
Wind context: the record also holds 63 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2021 — relevant where the dispute is wind vs hail causation.
Working a Oklahoma City claim from 2021?
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 35 miles of the Oklahoma City 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.