Hail HistoryHail history for Decatur County, IA
39 hail reports in Decatur County since 2006 on 26 days. The largest stones measured 2.50 in (tennis ball) on Jun 3, 2014.
Recent hail in Decatur County
| Date | Size hail | Where |
|---|---|---|
| May 19, 2025 | 2.00 in hen egg | Grand River 1 hail report |
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Hail days in Decatur County by year
When hail season peaks in Decatur County
Damaging thunderstorm winds in Decatur County
55 reports of damaging thunderstorm wind in Decatur County since 2006, on 39 days. The strongest measured gust was 77 mph on Mar 6, 2017.
| Date | Strongest gust | Where |
|---|---|---|
| Sep 19, 2026 | 76 mph, a measured | Lamoni 1 wind report |
| Aug 5, 2026 | 58 mph, a measured | Lamoni 2 wind reports |
| Sep 17, 2025 | 71 mph, a measured | Lamoni, Lamoni Muni Airport 2 wind reports |
| Mar 14, 2025 | 71 mph, a measured | Lamoni Muni Airport 2 wind reports |
| Jul 31, 2024 | 59 mph, a measured | Lamoni Muni Airport 1 wind report |
| Jul 25, 2024 | 59 mph, a measured | Lamoni Muni Airport 1 wind report |
| Jun 25, 2024 | 59 mph, a measured | Lamoni Muni Airport 1 wind report |
| Jun 30, 2023 | 67 mph, a measured | Lamoni Muni Airport 1 wind report |
| Jun 29, 2023 | 67 mph, a measured | Lamoni Muni Airport 1 wind report |
| Jun 7, 2022 | 60 mph, a estimat | Leon 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 Decatur 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).