Hail HistoryHome › Missouri › St. Louis County › Clarkson Valley
Hail history for Clarkson Valley, MO
Hail has been reported within 10 miles of Clarkson Valley on 70 days since 2006. The largest stones measured 3 in (tea cup) on May 13, 2023. Hail is most common here in April and May.
Recent hail near Clarkson Valley
| Date | Hail size | Where |
|---|---|---|
| Apr 27, 2026 | 1.25 in half dollar | Clarkson Vly, Vandalia Airport, Chesterfield 4 hail reports · closest near the center of Clarkson Valley |
| Apr 17, 2026 | 1 in quarter | Defiance, Gumbo, Cottleville 9 hail reports · closest 4 mi from Clarkson Valley |
| May 19, 2025 | 1.75 in golf ball | Oakland, Huntleigh 2 hail reports · closest 9 mi from Clarkson Valley |
| May 16, 2025 | 2.5 in tennis ball | Cottleville, Weldon, Weldon Spg 40 hail reports · closest 3 mi from Clarkson Valley |
| Apr 30, 2025 | 1 in quarter | Weldon Spg 1 hail report · closest 9 mi from Clarkson Valley |
| Mar 14, 2025 | 1.5 in ping pong ball | Crescent, Oakland, Harvester 9 hail reports · closest 4 mi from Clarkson Valley |
One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.
Hail days near Clarkson Valley by year
When hail season peaks near Clarkson Valley
Of the 70 hail days since 2006, most fell in April (20) and May (14).
Largest hail storms near Clarkson Valley
May 13, 2023 · 3 in (tea cup) · Harvester (9 mi from Clarkson Valley)
National Weather Service description (English): A swath of very large hail fell in eastern St. Charles County. Areas that received large hail includes St. Peters, Harvester and St. Charles, mainly along and east of Jungermann Road. This includes the main street area of St. Charles.Apr 28, 2012 · 2.75 in (baseball) · Harvester (9 mi from Clarkson Valley)
National Weather Service description (English): A wide swath of large hail fell in an area from the Missouri River near Highway 364 eastward through the WestPort Plaza area to near Lindbergh Boulevard. Numerous cars had their windows broken out at WestPort Plaza. Also, numerous homes sustained roof and siding damage.May 26, 2024 · 2.5 in (tennis ball) · Allenton (9 mi from Clarkson Valley)
National Weather Service description (English): Numerous reports of severe hailstones came in in the cities of Eureka, Wildwood, Ellisville, Ballwin, Manchester, Twin Oaks, Valley Park, Fenton, Des Peres, Frontenac, Kirkwood, Webster Groves, Sappington, Shrewsbury, Maplewood, Affton, Mehlville, Lakeshire, Crestwood, Oakland, and Lemay. The largest stones were 2 to 2.5 inches and fell in Peerless Park, Crestwood, and Webster Groves. There were reports of wind driven hail causing damage to the siding of homes.May 16, 2025 · 2.5 in (tennis ball) · Cottleville (9 mi from Clarkson Valley)
National Weather Service description (English): An official from the City of Chesterfield submitted a photo of 2 inch hail.May 15, 2019 · 2 in (hen egg) · Hollow (7 mi from Clarkson Valley)
Tornadoes within 10 miles of Clarkson Valley
| Date | Rating | Where |
|---|---|---|
| Jun 4, 2025 | EF1 | Pond 4 mi from Clarkson Valley |
| Mar 14, 2025 | EF1 | Melrose 9 mi from Clarkson Valley |
| Mar 14, 2025 | EF2 | Clarkson Vly 1 mi from Clarkson Valley |
| Apr 1, 2024 | EF0 | South Bellefontaine 3 mi from Clarkson Valley |
| Apr 15, 2023 | EF1 | Morschels 8 mi from Clarkson Valley |
| May 19, 2022 | EF0 | Times Beach 8 mi from Clarkson Valley |
| May 19, 2022 | EF0 | Frontenac 9 mi from Clarkson Valley |
| May 19, 2022 | EF0 | Fernridge 8 mi from Clarkson Valley |
| Dec 10, 2021 | EF1 | Spirit/St Louis 6 mi from Clarkson Valley |
| Dec 10, 2021 | EF1 | Weldon 6 mi from Clarkson Valley |
| Dec 10, 2021 | EF0 | St Louis Creve Coeur 8 mi from Clarkson Valley |
| Sep 9, 2014 | EF0 | Harvester 9 mi from Clarkson Valley |
Damaging thunderstorm winds near Clarkson Valley
157 reports of damaging thunderstorm wind within 10 miles of Clarkson Valley since 2006, on 98 days. The strongest measured gust was 79 mph on Jul 29, 2023.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 16, 2026 | damage reported | Chesterfield 1 wind report |
| Jul 27, 2026 | damage reported | Fenton 1 wind report |
| Jul 4, 2026 | damage reported | Weldon Spring, Harvester, Chesterfield 10 wind reports |
| Apr 27, 2026 | 70 mph, estimated | Ellisville, Fernridge 2 wind reports |
| Apr 17, 2026 | 58 mph, estimated | Harvester 1 wind report |
| Apr 15, 2026 | 58 mph, estimated | Ballwin 1 wind report |
| Mar 15, 2026 | 64 mph, estimated | Des Peres 1 wind report |
| Jul 6, 2025 | 58 mph, estimated | Cottleville 1 wind report |
| Jun 27, 2025 | 58 mph, estimated | Harvester 1 wind report |
| May 16, 2025 | 75 mph, estimated | Gumbo, Westwood 2 wind reports |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Clarkson Valley; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Nearby cities
- Chesterfield
85 hail days - Wildwood
61 hail days - Saint Peters
72 hail days - Saint Charles
87 hail days - O'Fallon
75 hail days - Oakville
71 hail days - Florissant
64 hail days - St. Louis
75 hail days
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Clarkson Valley.
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