Norman hail storm history
Cleveland County·NOAA NCEI Storm Events Database·~75-day publication lag
Norman sits in Cleveland County at the convergence of Tornado Alley's most active severe weather corridor. The dryline, jet stream, and Gulf moisture interact over this region to produce some of the world's most intense supercell thunderstorms, making hail a recurring threat to homeowners. The National Weather Service Storm Events Database tracks hail activity in Cleveland County through NOAA's official reporting network.
Check if your roof was damaged by recent hail
Hail season in Norman peaks during April, May, and June, with May historically producing the most damaging large-hail events in the region. Secondary activity occurs in March and July. These months align with the seasonal setup when warm, moist air from the Gulf collides with cold, dry air aloft—the atmospheric conditions required to generate severe supercell thunderstorms capable of producing large hail.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 408 recorded events, 125 (31%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
An image was relayed by a National Severe Storms Laboratory meteorologist. The location is approxima…
The report was relayed through mPING.
The report was relayed through mPING.
The report was relayed by emergency management. The location is approximate.
The report was relayed through mPING.
The report was relayed through mPING.
The report was relayed through mPING.
The report was relayed through mPING.
The report was relayed through mPING.
Event time estimated from radar observations.
The report was relayed through mPING.
Location is approximate.
MPing report.
MPing report.
MPing report.
MPing report.
Image relayed through broadcast media. Time is radar estimated.
MPing report.
Social media video. Time is radar estimated.
MPing report.
Social media video. Most hailstones were smaller than listed magnitude. Time is radar estimated.
Relayed report. Time and location are estimated.
MPing report.
MPing report.
Based on radar evidence, hailfall likely occurred prior (0045-0055 LST) to report time.
MPing report.
Social media photo.
MPing report.
MPing report.
MPing report.
Hailfall likely occurred prior to report time (between 1600-1610 CST) based on radar evidence.
Time and location were estimated via radar.
Time estimate from radar.
Significant damage to mobile home siding reported.
Time estimate.
Reported from Mping.
From Mping.
Time estimate from radar.
Mping report.
Time estimated from radar.
Reported via MPing.
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 ↗