The most recent reported hail day was 2025-03-30 -- 1 year ago, with nothing reported since. Hamilton County is hit in most years. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2017-02-28 near Harrison.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Ohio. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-03-30, around Covedale. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Hamilton 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 33 separate hail days here since 2010 -- 1.9 a year over 17 years of record. Those days carry 84 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: 2012 alone produced 8 of the 33 days. The last five years have been quieter than the long run: 4 days since 2022, against 2.4 a year before that.
4 of the 33 days reached 2 inches or more -- 12%, or about one hail day in 8, the last on 2017-02-28. Those big days do not follow the county's usual calendar: most of them fall in February, not July. Golf-ball size is rarer still: 1.75 inches or more on 5 of the 33 days.
Across the whole of Ohio, see the Ohio hail map and history.
Reports cluster nearest Blue Ash -- 5 of the county's 33 hail days -- then Covington (4), Harrison (4), Finneytown (4) and Loveland (4). Beyond those, NOAA names Dent, Cincinnati, White Oak, Cleves, Madeira, Norwood, Montgomery, Deer Park and Sharonville on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Dent | 3 | 2.00″ |
| Harrison | 3 | 2.00″ |
| Cincinnati | 3 | 1.75″ |
| White Oak | 3 | 1.75″ |
| Blue Ash | 3 | 1.50″ |
The season runs March through July: 29 of the 33 hail days on record fall in those 5 months (88%). July is the single busiest month, with 9 of them (27%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in February, August, September and December, outside that window. January, October and November are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 5 |
| April | 8 |
| May | 5 |
| June | 2 |
| July | 9 |
| August | 1 |
| September | 1 |
| December | 1 |
That day put 1 report on the map, the biggest 1 inch near Covedale. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-03-30 | 1.00″ | 1 |
| 2024-04-02 | 1.00″ | 1 |
| 2023-07-24 | 1.00″ | 2 |
| 2023-07-02 | 1.25″ | 2 |
| 2021-03-27 | 1.00″ | 2 |
| 2020-05-23 | 1.25″ | 3 |
| 2020-05-10 | 1.00″ | 1 |
| 2020-04-08 | 1.50″ | 6 |
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 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: Butler County (26 hail days), Clermont County (21), Warren County (19) and Kenton County, Kentucky (13). Hamilton County takes more hail than any of them.
Butler County · Clermont County · Warren County · Kenton County, Kentucky
Back to the Ohio hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Hamilton County, Ohio only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.