McKinney hail storm history
Collin County·NOAA NCEI Storm Events Database·~75-day publication lag
McKinney and Collin County sit in the heart of Tornado Alley, where supercell thunderstorms track northeast off the Llano Estacado and regularly produce large hail. The geographic position and atmospheric conditions that make this region prone to severe weather mean that homeowners in McKinney face measurable hail risk during spring and early summer months. Collin County's NOAA storm record documents extensive hail activity, including events with hail diameters large enough to cause functional damage to roofs and structures.
Check if your roof was damaged by recent hail
Hail activity in McKinney peaks during April, May, and June, with May historically producing the largest-diameter hail events. Secondary activity occurs in March and July as the seasonal atmospheric pattern shifts. Supercell thunderstorms that develop over the high plains track into the McKinney area with enough organization and moisture to generate severe hail, with peak storm dynamics concentrated in the spring transition period.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 259 recorded events, 99 (38%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Numerous social media reports indicated small hail up to the size of nickels, covering the ground in…
Reported via mPing.
Report from mPING: Quarter (1.00 in.).
A trained spotter reported penny sized hail in Van Alstyne.
Reported via mPING northwest of Allen.
Emergency management reported 1.25 inch hail in Sherman near Washington and 1417.
Reported via mPING 2 miles north of Wylie.
Emergency Management reported quarter sized hail in Tom Bean.
Trained spotter reported golf ball sized hail northeast of Princeton.
Reported via mPing.
Leonard VFD reported golf ball sized hail in the city of Leonard.
Emergency manager reported 1 inch hail in Van Alstyne.
Report from mPING: Quarter (1.00 in.).
Report from MPing.
Report from mPING: Half Dollar (1.25 in.).
Reported via mPing.
Quarter size hail was reported in Sherman.
Two-inch diameter hail was reported in Farmersville.
A 2.5 inch hail stone was measured near Greenville Avenue and Exchange Parkway in Allen.
Amateur radio reported 1-inch diameter hail in Randolph, TX.
Emergency management reported quarter sized hail in Southmayd.
Reported via mPing.
Golf ball size hail was reported at the intersection of U.S. Highway 75 and State Highway 56 in Sher…
A trained spotter reported golf ball sized hail in Farmersville, TX.
Penny sized hail and a wind gust to 48 mph was reported between Howe and Luella.
Golf ball sized hail was reported near Allen.
A trained spotter reported quarter sized hail in Celeste, TX.
Amateur radio reported half-dollar sized hail about a mile west of Kingston, TX.
A public report indicated quarter sized hail in Southmayd, TX.
A public report indicated half-dollar sized hail in Princeton, TX.
Reported via mPing.
A public report indicated quarter sized hail about a mile west of Bells, TX.
A public report indicated quarter sized hail approximately 2 miles west-northwest of the city of She…
Fire and rescue reported ping pong ball sized hail near the city of Nevada, TX.
Quarter size hail was reported near Caddo Mills.
A report of nickel size hail was received.
A public report indicated nickel-sized hail in the city of Sherman, TX.
Quarter size hail was reported at SH56 and US75 in Sherman.
A trained spotter reported quarter-sized hail immediately north-northeast of the city of Melissa, TX…
A social media report indicated half-dollar size hail in the city of McKinney, TX.
A trained spotter reported dime size hail just south of the city of Anna, TX.
Amateur radio reported penny size hail in the city of Greenville, TX.
Emergency management reported pea to penny size hail in the city of Sherman, TX.
Amateur radio reported quarter-size hail in the city of Celeste, TX.
A social media report indicated tennis-ball size hail near the intersection of White Stallion Trail …
A trained spotter reported quarter-sized hail approximately 3 miles north-northwest of the city of A…
A trained spotter reported quarter sized hail approximately 4 miles south of the city of Van Alstyne…
A trained spotter reported ping-pong ball sized hail in the city of Lowry Crossing, TX.
Emergency management reported quarter-sized hail at the Courthouse in the city of McKinney, TX.
Amateur radio reported quarter-sized hail in the city of Leonard, TX.
Amateur radio reported half-dollar sized hail in the city of Tom Bean, TX.
Broadcast media reported golfball sized hail near the intersection of Elldorado Parkway and Stonebri…
Emergency Manager reported golfball size hail near Celeste.
Emergency Manager reported golf ball size hail in Mckinney.
A social media report indicated one inch diameter hail in McKinney, TX.
A trained spotter reported quarter-sized hail 3 miles south of the city of Celeste, TX.
A trained spotter reported quarter-sized hail approximately 3 miles north of Celeste, TX.
Just over 1 sized hail was reported 2 miles southwest of Anna.
Nickel sized hail was reported in Tom Bean.
A public report indicated half-dollar sized hail in South McKinney.
Nickel sized hail reported 2 miles southwest of Blue Ridge.
NOAA National Centers for Environmental Information Storm Events Database. Publication lag is approximately 75 days — current-year events may be incomplete.
NOAA Storm Events Database ↗