Tulsa hail storm history
Tulsa County·NOAA NCEI Storm Events Database·~75-day publication lag
Tulsa County has recorded 40 documented hail events of 1 inch or larger since NOAA began systematic tracking, with 13 such events in the past 10 years. The city's location in eastern Oklahoma, where the Ozark Plateau meets Gulf moisture patterns, creates atmospheric conditions favorable for organized severe thunderstorms capable of producing damaging hail.
Hail in Tulsa peaks during April, May, and June, when supercell thunderstorms are most frequent across eastern Oklahoma. March and July also see secondary hail activity. The most recent significant event occurred on November 20, 2025, when golf ball-size hail damaged homes, businesses, and vehicles in the Westport area—a reminder that hail risk extends beyond the traditional spring season.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 273 recorded events, 57 (21%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Half dollar size hail damaged homes and vehicles in Westport.
Half dollar size hail damaged homes and vehicles in Kiefer.
Half dollar size hail damaged homes and vehicles.
Golf ball size hail damaged homes, businesses, and vehicles.
Ping pong ball size hail damaged homes and vehicles.
Golf ball size hail damaged homes and vehicles.
Half dollar size hail damaged homes and vehicles.
Half dollar size hail damaged homes and vehicles.
Golf ball size hail damaged homes, businesses, and vehicles.
Golf ball size hail damaged vehicles.
Half dollar size hail damaged vehicles and homes.
Half dollar size hail damaged homes and vehicles.
Half dollar size hail damaged homes, businesses, and vehicles.
Golf ball size hail damaged vehicles and homes.
Golf ball size hail damaged vehicles and homes.
Ping pong ball size hail damaged vehicles and homes.
Half dollar size hail damaged vehicles and the roofs of homes.
Ping pong ball size hail damaged vehicles and the roofs of homes.
Quarter size hail was reported at the Tulsa International Airport.
Tulsa County's 40-event historical record reflects NOAA's National Weather Service documentation standards, which may undercount smaller events or damage occurring in rural areas with limited reporting infrastructure. The 10-year count of 13 events (1.3 per year) provides a reliable baseline for recent risk assessment. 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