St. Louis hail storm history
St. Louis City·NOAA NCEI Storm Events Database·~75-day publication lag
St. Louis City is located in an active hail corridor where spring severe weather systems regularly track from the Great Plains into Missouri. The city's position along this path exposes it to organized thunderstorms capable of producing significant hail, particularly during the transition from late winter into early summer.
Check if your roof was damaged by recent hail
St. Louis experiences its highest frequency of hail events during April, May, and June, when mesoscale convective systems and bow echoes move northeast from the Plains with greatest intensity. Secondary activity occurs in March and July. The organized nature of these spring squall lines means that when hail does occur, it often affects multiple neighborhoods across the city in a single event.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 281 recorded events, 93 (33%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Missouri State Highway Patrol reported golf ball sized hail in Florissant.
The photo of the hailstone was received via social media.
An NWS employee reported hail falling that was at least quarter sized.
Individual reported quarter sized hail that was 2 to 3 inches deep on the ground.
There were numerous reports of 1 to 2 inch hailstones in eastern St. Charles County impacting St. Pe…
Up to 1 inch hail fell between Kirkwood and Brentwood.
Reports of 1 inch hailstones in Weldon Spring, Harvester, and St. Charles.
Another wide swath of large hail fell across St. Louis County up to two inches in diameter. The larg…
A discrete thunderstorm briefly produced up to 1 inch hail as it entered Jefferson County. No damage…
A discrete thunderstorm produced mainly half inch to nickel sized hailstones in southern St. Louis C…
Large hail up to two inches in diameter was reported in Florissant, Black Jack and Spanish Lake area…
A wide swath of large hail was reported in northern portions of St. Louis County. The areas that had…
A wide swath of large hail fell across northern portions of St. Louis County. Large hail was reporte…
A wide swath of large hail up to golf ball sized hail fell over Wildwood, Ellisville, Manchester, Ba…
A wide swath of large hail, up to two inches in diameter, fell across portions of St. Louis County i…
A wide swath of large hail fell across the southern portions of St. Charles County. The National Wea…
A wide swath of large hail between an inch and 1.25 inches in diameter fell along the I-270 corridor…
A wide swath of large hail fell across the area, mainly between O'Fallon and Cottleville.
A wide swath of large hail fell across the St. Louis metro area. Hail between one and two inches in …
Large hail up to the size of golfballs fell across the far southern portions of the city, in the Car…
A wide swath of large hail up to golf ball size fell in an area from western St. Louis County to nor…
A wide swath of large hail fell in an area from Chesterfield through Ballwin/Manchester area to Town…
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 ↗