The most recent reported hail day was 2026-04-17, 105 days ago. Roger Mills County is hit in most years, and usually several times over. The largest stone on record here is 4.5 inches, a softball and 4.5 times the National Weather Service's 1 inch severe criterion, reported on 2012-03-29 near Roll.
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 2026-04-17, around Cheyenne. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Roger Mills 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 56 separate hail days here since 2010 -- 3.3 a year over 17 years of record. Those days carry 124 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2012, with 8 hail days. The last five years track the long-run rate, with 14 days since 2022.
13 of the 56 days reached 2 inches or more -- 23%, or about one hail day in 4, the last on 2025-06-06. Those big days do not follow the county's usual calendar: most of them fall in April, not May. More than half of every hail day on record here -- 30 of 56 -- reached golf-ball size, 1.75 inches or bigger.
Across the whole of Oklahoma, see the Oklahoma hail map and history.
Reports cluster nearest Hammon -- 16 of the county's 56 hail days -- then Cheyenne (14), Reydon (13), Dempsey (9) and Crawford (8). Beyond those, NOAA names Roll, Sweetwater, Angora, Strong City, Durham and Leedey on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Hammon | 8 | 4.00″ |
| Cheyenne | 6 | 1.50″ |
| Reydon | 3 | 2.50″ |
| Roll | 3 | 2.00″ |
| 2 N Hammon | 2 | 3.00″ |
The season runs March through July: 45 of the 56 hail days on record fall in those 5 months (80%). May is the single busiest month, with 19 of them (34%). That peak sits inside the window rather than at either end. February and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| January | 1 |
| March | 5 |
| April | 10 |
| May | 19 |
| June | 10 |
| July | 1 |
| August | 3 |
| September | 3 |
| October | 3 |
| November | 1 |
That day put 1 report on the map, the biggest 1 inch near Cheyenne. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-17 | 1.00″ | 1 |
| 2026-03-05 | 1.75″ | 3 |
| 2025-09-18 | 1.75″ | 2 |
| 2025-06-08 | 1.75″ | 1 |
| 2025-06-06 | 4.00″ | 1 |
| 2025-05-26 | 2.75″ | 6 |
| 2025-03-03 | 1.00″ | 1 |
| 2024-05-19 | 1.50″ | 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 4.5 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, over the state line included: Beckham County (55 hail days), Ellis County (43), Custer County (53), Wheeler County, Texas (50) and Hemphill County, Texas (45). Roger Mills County takes more hail than any of them.
Beckham County · Ellis County · Custer County · Wheeler County, Texas · Hemphill County, Texas
Back to the Oklahoma hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Roger Mills County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.