Hail HistoryHail history for O'Brien County, IA
96 hail reports in O'Brien County since 2006 on 52 days. The largest stones measured 4 in (grapefruit) on Jul 9, 2009.
Cities in O'Brien County
Recent hail in O'Brien County
| Date | Hail size | Where |
|---|---|---|
| Jun 28, 2026 | 1 in quarter | Sanborn 1 hail report |
| May 25, 2026 | 1.25 in half dollar | Sanborn 1 hail report |
| May 18, 2026 | 1 in quarter | Sanborn 1 hail report |
| May 17, 2026 | 1.75 in golf ball | Sanborn 1 hail report |
| Apr 13, 2026 | 1.75 in golf ball | Germantown, Sanborn, Primghar 7 hail reports |
| Sep 22, 2025 | 2 in hen egg | Sutherland, Primghar 4 hail reports |
| Sep 16, 2025 | 1.75 in golf ball | Hartley, Ritter 2 hail reports |
| Aug 6, 2025 | 0.75 in penny | Sanborn 1 hail report |
| Apr 17, 2025 | 1.5 in ping pong ball | Archer 1 hail report |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in O'Brien County by year
When hail season peaks in O'Brien County
Damaging thunderstorm winds in O'Brien County
68 reports of damaging thunderstorm wind in O'Brien County since 2006, on 46 days. The strongest measured gust was 96 mph on Jun 22, 2015.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 4, 2026 | 54 mph, measured | Moneta 1 wind report |
| Jul 25, 2026 | 52 mph, measured | Sanborn 1 wind report |
| Jul 4, 2026 | damage reported | Sanborn 1 wind report |
| Jul 28, 2025 | 90 mph, estimated | Sheldon Muni Airport, Primghar, Sanborn 3 wind reports |
| Jun 29, 2025 | 64 mph, estimated | Germantown 1 wind report |
| Jun 21, 2024 | 81 mph, estimated | Sheldon 1 wind report |
| Jun 15, 2024 | 75 mph, estimated | Hartley 1 wind report |
| May 6, 2024 | 75 mph, estimated | Sutherland 1 wind report |
| Aug 11, 2023 | 81 mph, estimated | Paullina Muni Airport 1 wind report |
| Jul 10, 2023 | 60 mph, measured | Ritter 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 O'Brien 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).