Collin County was hit as recently as 2026-06-02, 59 days ago. Collin County is hit in most years, and usually several times over. The largest stone on record here is 4.5 inches, a softball and 4.5 times the National Weather Service's 1 inch severe criterion, reported on 2019-03-24 near McKinney.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Texas. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-02, around Lavon. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Collin 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 74 separate hail days here since 2010 -- 4.4 a year over 17 years of record. Those days carry 315 separate reports between them, better than three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2011, with 10 hail days. The last five years track the long-run rate, with 28 days since 2022.
Roof-killing hail is routine here: 20 of the 74 days reached 2 inches or more, 27% of them, the last on 2025-09-21. They land in the same month as everything else, April. 31 of the 74 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Texas, see the Texas hail map and history.
Reports cluster nearest Plano -- 21 of the county's 74 hail days -- then Mckinney (20), Prosper (20), Frisco (16) and Allen (16). Beyond those, NOAA names Wylie, Princeton, Celina, Murphy, Anna, Farmersville, Lucas, Blue Ridge and Melissa on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| McKinney | 14 | 3.00″ |
| Plano | 13 | 2.00″ |
| Prosper | 10 | 2.75″ |
| Frisco | 10 | 2.00″ |
| Wylie | 9 | 4.25″ |
The season runs February through June: 61 of the 74 hail days on record fall in those 5 months (82%). April is the single busiest month, with 20 of them (27%). That peak sits inside the window rather than at either end. January and July are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 3 |
| March | 15 |
| April | 20 |
| May | 14 |
| June | 9 |
| August | 2 |
| September | 3 |
| October | 3 |
| November | 4 |
| December | 1 |
That day put 1 report on the map, the biggest 1 inch near Lavon. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-02 | 1.00″ | 1 |
| 2026-04-27 | 1.25″ | 3 |
| 2025-09-21 | 2.00″ | 5 |
| 2025-06-08 | 1.00″ | 1 |
| 2025-05-06 | 1.50″ | 2 |
| 2025-04-19 | 1.00″ | 1 |
| 2025-03-29 | 1.00″ | 3 |
| 2025-03-25 | 2.25″ | 16 |
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 4.5 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: Rockwall County (18 hail days), Dallas County (88) and Denton County (86). Collin County sits in between.
Rockwall County · Dallas County · Denton County
Back to the Texas hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Collin County, Texas only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.