The most recent reported hail day was 2025-06-03 -- 1 year ago, with nothing reported since. McClain County is hit in most years, and usually several times over. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2017-05-27 near Purcell.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Oklahoma. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-06-03, around Newcastle. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls McClain County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 63 separate hail days here since 2010 -- 3.7 a year over 17 years of record. Those days carry 133 separate reports between them, two or three on a typical one. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2011, with 7 hail days. The last five years track the long-run rate, with 17 days since 2022.
11 of the 63 days reached 2 inches or more -- 17%, or about one hail day in 6, the last on 2025-05-25. They land in the same month as everything else, May. 21 of the 63 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Oklahoma, see the Oklahoma hail map and history.
Reports cluster nearest Newcastle -- 25 of the county's 63 hail days -- then Blanchard (17), Purcell (12), Goldsby (8) and Washington (8). That one town is named on 40% of them. Beyond those, NOAA names Wayne, Dibble, Byars, Payne, Cole and Criner on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Newcastle | 9 | 2.00″ |
| Blanchard | 7 | 1.25″ |
| 1 WSW Newcastle | 6 | 1.75″ |
| Purcell | 4 | 1.75″ |
| 3 S Goldsby | 3 | 2.75″ |
The season runs March through June: 51 of the 63 hail days on record fall in those 4 months (81%). May is the single busiest month, with 21 of them (33%). That peak sits inside the window rather than at either end. November and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| January | 1 |
| February | 1 |
| March | 10 |
| April | 16 |
| May | 21 |
| June | 4 |
| July | 2 |
| August | 4 |
| September | 1 |
| October | 3 |
That day put 1 report on the map, the biggest 1.25 inches near Newcastle. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-03 | 1.25″ | 1 |
| 2025-05-25 | 3.00″ | 4 |
| 2025-05-19 | 1.00″ | 1 |
| 2025-05-17 | 1.00″ | 1 |
| 2025-04-28 | 1.75″ | 5 |
| 2025-03-29 | 1.75″ | 1 |
| 2024-05-09 | 1.00″ | 2 |
| 2024-04-27 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Cleveland County (81 hail days), Grady County (76) and Garvin County (49). McClain County sits in between.
Cleveland County · Grady County · Garvin County
Back to the Oklahoma hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, McClain County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.