The most recent reported hail day was 2026-04-28, 94 days ago. Adair County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2016-05-29 near Stilwell.
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 Scraper. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Adair 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 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. They carry 30 reports in total: most hail days here are logged from a single spot. 5 of those 17 years produced none at all. One year dominates the record: 2011 alone produced 5 of the 22 days. The last five years track the long-run rate, with 5 days since 2022.
5 of the 22 days reached 2 inches or more -- 23%, or about one hail day in 4, the last on 2026-04-28. They land in the same month as everything else, April. 8 of the 22 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 Stilwell -- 11 of the county's 22 hail days -- then Westville (4), Bunch (3), Watts (2) and Baron (2). That one town is named on 50% of them. Beyond those, NOAA names Marietta on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Stilwell | 4 | 1.00″ |
| Westville | 3 | 1.75″ |
| Watts | 2 | 2.50″ |
| Baron | 2 | 2.00″ |
| 4 Se Stilwell | 2 | 1.00″ |
The season runs March through May: 18 of the 22 hail days on record fall in those 3 months (82%). April is the single busiest month, with 9 of them (41%). That peak sits inside the window rather than at either end. Hail has also been reported in February, June, August and October, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 3 |
| April | 9 |
| May | 6 |
| June | 1 |
| August | 1 |
| October | 1 |
That day put 1 report on the map, the biggest 2 inches near Scraper. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-28 | 2.00″ | 1 |
| 2025-05-18 | 1.00″ | 1 |
| 2023-06-13 | 2.00″ | 1 |
| 2022-05-15 | 1.50″ | 1 |
| 2022-04-15 | 1.00″ | 1 |
| 2020-03-10 | 1.00″ | 1 |
| 2017-04-29 | 1.00″ | 1 |
| 2017-03-06 | 1.75″ | 2 |
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 2.75 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: Cherokee County (26 hail days), Sequoyah County (29), Delaware County (26), Washington County, Arkansas (49) and Crawford County, Arkansas (27). Every one of them takes more hail than Adair County.
Cherokee County · Sequoyah County · Delaware County · Washington County, Arkansas · Crawford County, Arkansas
Back to the Oklahoma hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Adair County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.