The most recent reported hail day was 2025-06-28, 398 days ago. Warren 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 2020-04-08 near Loveland.
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 2025-06-28, around Landen. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Warren 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 19 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 42 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. One year dominates the record: 2025 alone produced 4 of the 19 days. The last five years track the long-run rate, with 5 days since 2022.
2 of the 19 days reached 2 inches or more -- 11%, or about one hail day in 10, the last on 2020-04-08. Those big days do not follow the county's usual calendar: most of them fall in April, not July. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 19 days.
Across the whole of Ohio, see the Ohio hail map and history.
Reports cluster nearest Morrow -- 5 of the county's 19 hail days -- then Landen (4), Mason (4), Waynesville (3) and Loveland (2). Beyond those, NOAA names Maineville, Clarksville, Pleasant Plain and Lebanon on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Landen | 3 | 1.50″ |
| Morrow | 3 | 1.00″ |
| Maineville | 2 | 2.00″ |
| 2 WNW Clarksville | 2 | 1.50″ |
| Mason | 2 | 1.50″ |
The season runs March through July: 16 of the 19 hail days on record fall in those 5 months (84%). July is the single busiest month, with 5 of them (26%). 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 and September, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 1 |
| April | 4 |
| May | 3 |
| June | 3 |
| July | 5 |
| August | 1 |
| September | 1 |
That day put 2 reports on the map, the biggest 1.75 inches near Landen. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-28 | 1.75″ | 2 |
| 2025-05-16 | 1.50″ | 1 |
| 2025-04-04 | 1.00″ | 1 |
| 2025-02-27 | 1.00″ | 2 |
| 2023-07-18 | 1.50″ | 3 |
| 2021-06-29 | 1.00″ | 1 |
| 2020-07-09 | 1.00″ | 1 |
| 2020-04-08 | 2.00″ | 5 |
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: Butler County (26 hail days), Clinton County (18) and Hamilton County (33). Warren County sits in between.
Butler County · Clinton County · Hamilton County
Back to the Ohio hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Warren County, Ohio only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.