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Hail history for Jefferson County, MO
176 hail reports in Jefferson County since 2006 on 85 days. The largest stones measured 3 in (tea cup) on Nov 5, 2017.
Cities in Jefferson County
- Arnold
65 hail days - Festus
51 hail days - Murphy
67 hail days - De Soto
52 hail days - Barnhart
50 hail days - Pevely
47 hail days - Crystal City
46 hail days - Imperial
50 hail days - High Ridge
58 hail days - Herculaneum
48 hail days - Hillsboro
57 hail days - Byrnes Mill
56 hail days
Recent hail in Jefferson County
| Date | Hail size | Where |
|---|---|---|
| Apr 27, 2026 | 1 in quarter | Dittmer, House Spgs 2 hail reports |
| Jun 7, 2025 | 1 in quarter | Vineland 1 hail report |
| Mar 14, 2025 | 1.75 in golf ball | House Spgs Airport, Kimmswick, Imperial 23 hail reports |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in Jefferson County by year
When hail season peaks in Jefferson County
Damaging thunderstorm winds in Jefferson County
112 reports of damaging thunderstorm wind in Jefferson County since 2006, on 80 days. The strongest measured gust was 75 mph on Apr 19, 2011.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 12, 2026 | damage reported | Grubville, De Soto 2 wind reports |
| Jul 4, 2026 | damage reported | Otto, Mapaville 2 wind reports |
| Apr 27, 2026 | 60 mph, estimated | Bayshore 1 wind report |
| Mar 11, 2026 | 58 mph, estimated | Valles Mines 1 wind report |
| Jul 29, 2025 | 69 mph, estimated | Pevely 1 wind report |
| May 19, 2025 | 69 mph, estimated | Mapaville, Murphy, De Soto Airport 3 wind reports |
| May 16, 2025 | 69 mph, estimated | High Ridge 1 wind report |
| Apr 20, 2025 | 69 mph, estimated | De Soto 1 wind report |
| Apr 10, 2025 | 69 mph, estimated | Barnhart 1 wind report |
| Mar 14, 2025 | 92 mph, estimated | Bayshore 1 wind report |
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 Jefferson County; 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.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).