HailEvidence → hail history → Duncan, OK
Duncan, OK hail history
Every figure below is from the NOAA NCEI Storm Events Database — the official NWS record — counting events recorded within 10 miles of the Duncan city centroid, 1950 to present.
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 13 | 1.75" (golf ball) |
| 2024 | 8 | 1.75" (golf ball) |
| 2023 | 11 | 1.75" (golf ball) |
| 2022 | 1 | 2.00" (hen egg) |
| 2021 | 1 | 1.00" (quarter) |
| 2020 | 18 | 2.00" (hen egg) |
| 2019 | 4 | 1.75" (golf ball) |
| 2018 | 5 | 1.75" (golf ball) |
| 2017 | 7 | 2.75" (baseball) |
| 2016 | 6 | 2.00" (hen egg) |
| 2015 | 14 | 2.75" (baseball) |
| 2014 | 5 | 1.75" (golf ball) |
| 2013 | 7 | 1.75" (golf ball) |
| 2012 | 7 | 1.75" (golf ball) |
Note: the current and prior year reflect the latest NCEI compile and grow as NWS finalizes reports; same-day activity appears on this site's storm-day pages before it reaches this table.
Wind and tornado record
- 132 thunderstorm-wind events, strongest 86 mph, most recent 2025-04-30.
- 34 tornado events, most recent 2024-11-03.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-05-22 | Hail | 0.88" | 4.3 mi |
| 2025-05-22 | Hail | 1.75" | 9.3 mi |
| 2025-05-22 | Hail | 0.75" | 3.8 mi |
| 2025-05-22 | Hail | 1.50" | 10 mi |
| 2025-05-22 | Hail | 1.00" | 0.2 mi |
| 2025-04-30 | Thunderstorm Wind | 64 mph | 8.2 mi |
| 2025-04-30 | Thunderstorm Wind | 75 mph | 7.7 mi |
| 2025-04-01 | Hail | 1.00" | 1.1 mi |
| 2025-04-01 | Hail | 0.75" | 2.8 mi |
| 2025-04-01 | Hail | 1.25" | 3.1 mi |
2025-05-22: “Hailfall occurred near the intersection of U.S. Highway 81 and Refinery Road.”
2025-05-22: “Hailfall occurred near the intersection of County Roads 1780 and 2910. The event time is estimated from radar observations.”
2025-05-22: “The report was relayed through mPING.”
Disputing a claim at a Duncan address?
This page covers the city. A claim dispute needs the record around your address: every NWS-recorded event within 1, 3 and 10 miles, the disputed date highlighted, citations formatted for an insurance appeal.
Verify an address — $29source: NOAA NCEI Storm Events computed 2026-06-12