The most recent reported hail day was 2026-04-28, 94 days ago. Carter 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 2011-05-22 near Wsw Lone Grove.
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 2026-04-28, around Ardmore. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Carter 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 57 separate hail days here since 2010 -- 3.4 a year over 17 years of record. Those days carry 123 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 2011, with 7 hail days. The last five years track the long-run rate, with 15 days since 2022.
10 of the 57 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2026-04-15. They land in the same month as everything else, May. 26 of the 57 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 Ardmore -- 17 of the county's 57 hail days -- then Lone Grove (15), Healdton (14), Wilson (9) and Gene Autry (8). Beyond those, NOAA names Springer, Dickson, Ratliff City, Tatums, Dundee, Overbrook and Pooleville on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Lone Grove | 9 | 4.25″ |
| Healdton | 8 | 1.75″ |
| Wilson | 5 | 3.00″ |
| Gene Autry | 4 | 2.75″ |
| Springer | 4 | 2.75″ |
The season runs March through June: 49 of the 57 hail days on record fall in those 4 months (86%). May is the single busiest month, with 21 of them (37%). That peak sits inside the window rather than at either end. Hail has also been reported in July, August, September and October, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| March | 6 |
| April | 14 |
| May | 21 |
| June | 8 |
| July | 1 |
| August | 2 |
| September | 1 |
| October | 4 |
That day put 1 report on the map, the biggest 1 inch near Ardmore. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-28 | 1.00″ | 1 |
| 2026-04-15 | 2.00″ | 3 |
| 2025-05-22 | 2.00″ | 6 |
| 2025-05-19 | 1.75″ | 2 |
| 2025-04-19 | 2.00″ | 3 |
| 2025-04-04 | 1.75″ | 1 |
| 2025-03-25 | 1.00″ | 1 |
| 2024-06-09 | 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 4.5 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: Love County (40 hail days), Murray County (35) and Marshall County (27). Carter County takes more hail than any of them.
Love County · Murray County · Marshall 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, Carter County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.