Stillwater hail storm history
Payne County·NOAA NCEI Storm Events Database·~75-day publication lag
Stillwater is located in Payne County, which has experienced 18 documented hail events of 1 inch or larger since records began, with 7 of those events reaching the 1.5-inch threshold capable of functional roof damage. The city sits in the convergence zone where the dryline, jet stream, and Gulf moisture meet to produce intense supercell thunderstorms characteristic of Tornado Alley. Stillwater averages 0.7 hail events per year, with the largest recorded hailstone reaching 3.75 inches in diameter near Morrison on November 20, 2025.
Hail season in Stillwater peaks during April, May, and June, with May historically producing the most damaging large-hail events in the region. Secondary hail activity occurs in March and July. These months align with the atmospheric setup that produces supercell thunderstorms capable of generating severe hail across Payne County.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 169 recorded events, 62 (37%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Numerous sources reported hail nearing 3.75 inches in diameter near the community of Morrison. A rel…
Hailfall just east of the Interstate 35 and Oklahoma Highway 51 intersection. The location is approx…
The report was relayed through mPING. The event time is adjusted based on radar observations.
The location is approximate.
The report was relayed through mPING.
An image from near the intersection of Range Road and 80th Street was relayed by emergency managemen…
The report was relayed by emergency management.
The report was relayed through mPING.
The report was relayed through mPING.
MPing report.
Golf ball size hail damaged homes and vehicles.
Social media image. Additional image/confirmation of siding and window damage to at least one house …
MPing report.
MPing report.
MPing report.
MPing report.
MPing report.
Relayed via the Lincoln County Emergency Management Office.
MPing report.
MPing report.
Ping pong ball size hail damaged vehicles and homes.
Ping pong ball size hail damaged vehicles and the roofs of homes.
Dime to nickel sized hail in Cushing.
Estimated from picture on Twitter. Time estimated from radar.
Time based on radar.
Time estimate from radar.
Time of hail fall estimated. Found and measured at 248 pm.
No damage was reported.
Stillwater's hail event count of 7 events at 1 inch or larger over the past 10 years is based on NOAA Storm Events Database records, which rely on trained spotters, emergency management reports, and trained media sources. Smaller hail events and localized damage outside populated areas may not be documented in this database. Current-year data is excluded from the annual frequency table until October, when NOAA's Storm Events Database has processed the full hail season accounting for the standard 75-day reporting lag.
NOAA Storm Events Database source