The most recent reported hail day was 2024-05-15 -- 2 years ago, with nothing reported since. Union County is hit in about half the years on record. The largest stone on record here is 1.75 inches, a golf ball and 1.8 times the National Weather Service's 1 inch severe criterion, reported on 2014-05-23 near Waxhaw.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in North Carolina. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2024-05-15, around Indian Trail. 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.
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 19 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 35 separate reports between them, two or three on a typical one. 7 of those 17 years produced none at all. One year dominates the record: 2012 alone produced 4 of the 19 days. The last five years have been quieter than the long run: 2 days since 2022, against 1.4 a year before that.
No stone of 2 inches or more has ever been reported in Union County: all 19 hail days on record topped out below that. 7 of the 19 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of North Carolina, see the North Carolina hail map and history.
Reports cluster nearest Monroe -- 9 of the county's 19 hail days -- then Waxhaw (6), Fairview (3), Indian Trail (2) and Stallings (2). That one town is named on 47% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Waxhaw | 3 | 1.75″ |
| 5 ENE Waxhaw | 2 | 1.75″ |
| 6 Ne Waxhaw | 2 | 1.25″ |
| Indian Trail | 2 | 1.25″ |
| Monroe | 2 | 1.00″ |
The season runs May through September: 17 of the 19 hail days on record fall in those 5 months (89%). May is the single busiest month, with 8 of them (42%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in April, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 8 |
| June | 3 |
| July | 2 |
| August | 1 |
| September | 3 |
That day put 2 reports on the map, the biggest 1 inch near Indian Trail. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-05-15 | 1.00″ | 2 |
| 2023-09-07 | 1.00″ | 2 |
| 2019-09-13 | 1.00″ | 1 |
| 2017-07-23 | 1.00″ | 1 |
| 2016-05-03 | 1.00″ | 1 |
| 2016-05-02 | 1.00″ | 1 |
| 2014-06-21 | 1.00″ | 1 |
| 2014-05-29 | 1.00″ | 1 |
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 1.75 inches, which is the red 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: Mecklenburg County (34 hail days), Cabarrus County (21), Gaston County (26), Lancaster County, South Carolina (20) and York County, South Carolina (29). Every one of them takes more hail than Union County.
Mecklenburg County · Cabarrus County · Gaston County · Lancaster County, South Carolina · York County, South Carolina
Back to the North Carolina hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Union County, North Carolina only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.