Hail HistoryHail history for Union County, IA
89 hail reports in Union County since 2006 on 45 days. The largest stones measured 3.00 in (tea cup) on Jun 18, 2021.
Cities in Union County
Recent hail in Union County
| Date | Hail size | Where |
|---|---|---|
| Sep 16, 2025 | 0.88 in 5-cent coin | Afton 1 hail report |
| Apr 17, 2025 | 1.00 in 25-cent coin | Afton, Thayer 3 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 Union County by year
When hail season peaks in Union County
Damaging thunderstorm winds in Union County
82 reports of damaging thunderstorm wind in Union County since 2006, on 50 days. The strongest measured gust was 74 mph on Aug 9, 2009.
| Date | Strongest gust | Where |
|---|---|---|
| Sep 14, 2026 | 63 mph, imwin | Creston 1 wutuk wind |
| Jul 8, 2025 | 60 mph, ekkar | Afton 1 wutuk wind |
| Sep 19, 2024 | 60 mph, ekkar | Thayer 1 wutuk wind |
| Jun 25, 2024 | 62 mph, imwin | Lorimor 1 wutuk wind |
| Apr 30, 2024 | 58 mph, ekkar | Creston 1 wutuk wind |
| Apr 26, 2024 | 72 mph, imwin | Lorimor 1 wutuk wind |
| Jul 12, 2023 | 63 mph, ekkar | Creston, Cromwell, Lorimor 4 wutuk wind |
| Jun 29, 2023 | 63 mph, imwin | Talmage 1 wutuk wind |
| Jun 17, 2023 | 60 mph, imwin | Creston Airport 1 wutuk wind |
| Jun 7, 2022 | 68 mph, imwin | Creston Airport, Creston 3 wutuk wind |
Wind imwin thunderstorm ej 58 mph anikaj, im wind ej kajjitok dmg. Imwin wind ej imwin eokta weather stations; ekkar ej imwin eokta spotters im dmg surveys.
Jabdoñ eo an roof im hail?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Union 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).