The most recent reported hail day was 2024-05-08 -- 2 years ago, with nothing reported since. Union County is hit in most years. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2014-05-23 near Union.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in South Carolina. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2024-05-08, around Carlisle. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Union 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 14 separate hail days here since 2010 -- 0.8 a year over 17 years of record. They carry 21 reports in total: most hail days here are logged from a single spot. 6 of those 17 years produced none at all. One year dominates the record: 2012 alone produced 3 of the 14 days. The last five years have been quieter than the long run: 1 days since 2022, against 1.1 a year before that.
Most hail here stays under 2 inches: only 1 of the 14 days on record passed it, 7%, the last on 2014-05-23. Those big days do not follow the county's usual calendar: most of them fall in May, not March. 4 of the 14 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of South Carolina, see the South Carolina hail map and history.
Reports cluster nearest Union -- 6 of the county's 14 hail days -- then Carlisle (4), Lockhart (2) and Jonesville (2). That one town is named on 43% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Union | 3 | 1.75″ |
| 3 Nnw Union | 2 | 1.75″ |
| Jonesville | 2 | 1.00″ |
| 1 Wnw Union | 1 | 3.00″ |
| 4 NW Carlisle | 1 | 1.75″ |
The season runs March through June: 13 of the 14 hail days on record fall in those 4 months (93%). March is the single busiest month, with 4 of them (29%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in August, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| March | 4 |
| April | 3 |
| May | 3 |
| June | 3 |
| August | 1 |
That day put 1 report on the map, the biggest 1.75 inches near Carlisle. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-05-08 | 1.75″ | 1 |
| 2021-03-25 | 1.00″ | 1 |
| 2020-05-05 | 1.50″ | 1 |
| 2019-06-22 | 1.50″ | 1 |
| 2016-06-17 | 1.00″ | 1 |
| 2015-04-20 | 1.00″ | 2 |
| 2015-04-07 | 1.75″ | 1 |
| 2014-05-23 | 3.00″ | 4 |
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 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: Cherokee County (18 hail days), Newberry County (16) and Laurens County (23). Every one of them takes more hail than Union County.
Cherokee County · Newberry County · Laurens County
Back to the South Carolina hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Union County, South Carolina only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.