The most recent reported hail day was 2026-04-23, 99 days ago. Grant County is hit in most years. The largest stone on record here is 3.25 inches and 3.2 times the National Weather Service's 1 inch severe criterion, reported on 2026-04-17 near Lamont.
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 2026-04-23, around Deer Creek. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Grant County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->NOAA's Storm Prediction Center has logged 28 separate hail days here since 2010 -- 1.6 a year over 17 years of record. Those days carry 57 separate reports between them, two or three on a typical one. 3 of those 17 years produced none at all. One year dominates the record: 2016 alone produced 6 of the 28 days. The last five years have been quieter than the long run: 5 days since 2022, against 1.9 a year before that.
6 of the 28 days reached 2 inches or more -- 21%, or about one hail day in 5, the last on 2026-04-23. 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 -- 15 of 28 -- reached golf-ball size, 1.75 inches or bigger.
Across the whole of Oklahoma, see the Oklahoma hail map and history.
Reports cluster nearest Medford -- 11 of the county's 28 hail days -- then Lamont (6), Renfrow (5), Pond Creek (5) and Deer Creek (4). Beyond those, NOAA names Jefferson, Hillsdale, Nash and Wakita on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Lamont | 5 | 3.25″ |
| Medford | 4 | 2.00″ |
| Deer Creek | 3 | 1.75″ |
| Pond Creek | 3 | 1.75″ |
| Jefferson | 2 | 1.25″ |
The season runs February through June: 23 of the 28 hail days on record fall in those 5 months (82%). May is the single busiest month, with 12 of them (43%). That peak sits inside the window rather than at either end. Hail has also been reported in July, August, September and November, outside that window. January, October and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 2 |
| April | 6 |
| May | 12 |
| June | 2 |
| July | 1 |
| August | 2 |
| September | 1 |
| November | 1 |
That day put 6 reports on the map, the biggest 2.75 inches near Deer Creek. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-23 | 2.75″ | 6 |
| 2026-04-17 | 3.25″ | 11 |
| 2025-08-10 | 1.75″ | 1 |
| 2024-08-16 | 1.00″ | 1 |
| 2022-05-13 | 1.25″ | 1 |
| 2021-11-10 | 1.00″ | 1 |
| 2019-05-18 | 1.75″ | 3 |
| 2019-03-28 | 1.75″ | 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 3.25 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: Garfield County (65 hail days), Kay County (55) and Alfalfa County (26). Grant County sits in between.
Garfield County · Kay County · Alfalfa 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, Grant County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.