The most recent reported hail day was 2026-04-25, 97 days ago. Ottawa 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 2020-05-04 near Miami.
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 2026-04-25, around Tiff City. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Ottawa 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 32 separate hail days here since 2010 -- 1.9 a year over 17 years of record. Those days carry 68 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: 2011 alone produced 7 of the 32 days. The last five years have been quieter than the long run: 5 days since 2022, against 2.2 a year before that.
4 of the 32 days reached 2 inches or more -- 12%, or about one hail day in 8, the last on 2024-05-25. They land in the same month as everything else, May. 11 of the 32 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 Miami -- 10 of the county's 32 hail days -- then Afton (9), Wyandotte (8), Fairland (7) and Quapaw (5). Beyond those, NOAA names Tiff City, Peoria, Narcissa, Ottawa and Commerce on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Miami | 6 | 1.75″ |
| Afton | 5 | 2.50″ |
| Wyandotte | 4 | 2.50″ |
| Fairland | 4 | 1.75″ |
| 2 N Miami | 2 | 2.00″ |
The season runs March through July: 27 of the 32 hail days on record fall in those 5 months (84%). May is the single busiest month, with 9 of them (28%). That peak sits inside the window rather than at either end. Hail has also been reported in August, September and November, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| March | 7 |
| April | 7 |
| May | 9 |
| June | 2 |
| July | 2 |
| August | 2 |
| September | 2 |
| November | 1 |
That day put 1 report on the map, the biggest 1 inch near Tiff City. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-25 | 1.00″ | 1 |
| 2025-03-22 | 1.50″ | 2 |
| 2024-05-25 | 2.00″ | 4 |
| 2024-05-08 | 1.75″ | 4 |
| 2023-03-02 | 1.75″ | 4 |
| 2020-08-15 | 1.25″ | 1 |
| 2020-07-11 | 1.75″ | 4 |
| 2020-05-04 | 2.75″ | 7 |
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: Craig County (23 hail days), Delaware County (26), Mayes County (37), Cherokee County, Kansas (53) and Newton County, Missouri (50). Ottawa County sits in between.
Craig County · Delaware County · Mayes County · Cherokee County, Kansas · Newton County, Missouri
Back to the Oklahoma hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Ottawa County, Oklahoma only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.