Round Rock hail storm history
Williamson County·NOAA NCEI Storm Events Database·~75-day publication lag
Round Rock and Williamson County sit in central Texas where warm, moisture-laden air from the Gulf of Mexico regularly collides with drier air masses moving eastward from the high plains. This collision zone creates favorable conditions for hail-producing thunderstorms throughout the year, with particular intensity during spring months. The specific frequency and severity of hail events in this area are tracked through National Weather Service records and displayed in the statistics table above.
Check if your roof was damaged by recent hail
Round Rock's hail season peaks from April through June, when atmospheric instability is highest and afternoon convective storms develop most frequently. May is typically the most active month, as Gulf moisture reaches peak levels and afternoon heating triggers widespread storm development. Secondary activity occurs in March and July as transitional conditions persist on either side of the primary season.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 87 recorded events, 43 (49%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
A thunderstorm produced golf ball size hail between Leander and Cedar Park.
A thunderstorm produced two inch diameter hail in the Carneros Ranch neighborhood in Leander.
A thunderstorm produced golf ball size hail northeast of Hutto.
A thunderstorm produced quarter size hail at the intersection of Paloma Lake Blvd. and Diego Dr. on …
A thunderstorm produced penny size hail in Hutto.
A thunderstorm produced half dollar size hail northeast of Elgin.
A thunderstorm produced four inch diameter hail off of CR 460 in Coupland.
A thunderstorm produced golf ball size hail on the eastside of Hutto.
A thunderstorm produced quarter to golf ball size hail on the north side of Elgin.
A thunderstorm produced quarter size hail southeast of Elgin.
A thunderstorm produced quarter size hail at the intersection of FM 1431 and I-35 in Round Rock.
A thunderstorm produced golf ball size hail in Cedar Park.
A thunderstorm produced penny size hail in Leander.
A thunderstorm produced quarter size hail in Jollyville.
A thunderstorm produced dime to quarter size hail at the Brushy Creek RV Park between Hutto and Coup…
A thunderstorm produced nickel size hail in Leander.
A thunderstorm produced ping pong ball size hail in Elgin.
A thunderstorm produced quarter size hail in Jollyville.
A thunderstorm produced penny size hail near Cedar Park.
A thunderstorm produced quarter size hail near the intersection of Hwy 79 and Hwy 130 west of Hutto.
A thunderstorm produced one to one and a quarter inch hail near the intersection of CR 405 and FM 16…
A thunderstorm produced quarter size hail near I-35 and Hwy 45 in Round Rock.
A thunderstorm produced quarter size hail near I-35 and Hwy 45 in Round Rock.
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 ↗