Hail HistoryHail history for Delaware County, IA
92 hail reports in Delaware County since 2006 on 41 days. The largest stones measured 4.5 in (softball) on Aug 7, 2026.
Cities in Delaware County
Recent hail in Delaware County
| Date | Hail size | Where |
|---|---|---|
| Aug 7, 2026 | 4.5 in softball | Ryan 1 hail report |
| Apr 17, 2026 | 1.25 in half dollar | Hopkinton 1 hail report |
| Apr 14, 2026 | 1 in quarter | Ryan, Turtle Creek Park 2 hail reports |
| Jul 3, 2025 | 1 in quarter | Manchester Airport, Manchester 2 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 Delaware County by year
When hail season peaks in Delaware County
Damaging thunderstorm winds in Delaware County
141 reports of damaging thunderstorm wind in Delaware County since 2006, on 70 days. The strongest measured gust was 89 mph on May 17, 2017.
| Date | Strongest gust | Where |
|---|---|---|
| Sep 4, 2026 | damage reported | Manchester Airpor, Manchester 2 wind reports |
| Aug 11, 2026 | 70 mph, measured | Greeley, Dundee 2 wind reports |
| Aug 7, 2026 | 70 mph, estimated | Ryan 2 wind reports |
| Jul 2, 2026 | damage reported | Ryan 1 wind report |
| Jun 10, 2026 | 64 mph, estimated | Greeley, Oneida 2 wind reports |
| May 18, 2026 | 70 mph, estimated | Ryan 1 wind report |
| Apr 17, 2026 | 60 mph, estimated | Twin Bridges Park 1 wind report |
| Apr 14, 2026 | 81 mph, estimated | Delhi, Delaware 4 wind reports |
| Jul 29, 2025 | 75 mph, estimated | Manchester, Turtle Creek Park 3 wind reports |
| Jul 11, 2025 | 75 mph, estimated | Buck Creek 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 Delaware 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).