Hail HistoryHome › Iowa › Winneshiek County › Decorah
Hail history for Decorah, IA
Hail has been reported within 10 miles of Decorah on 22 days since 2006. The largest stones measured 2 in (hen egg) on May 15, 2017. Hail is most common here in June and July.
Recent hail near Decorah
| Date | Hail size | Where |
|---|---|---|
| Aug 16, 2025 | 1 in quarter | Calmar 1 hail report · closest 9 mi from Decorah |
| Jul 2, 2025 | 1 in quarter | Bluffton 1 hail report · closest 7 mi from Decorah |
One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.
Hail days near Decorah by year
When hail season peaks near Decorah
Of the 22 hail days since 2006, most fell in June (5) and July (4).
Largest hail storms near Decorah
Aug 9, 2012 · 2 in (hen egg) · Decorah Tatro Airport (2 mi from Decorah)
National Weather Service description (English): Hail the size of hen eggs was reported two miles west of Decorah.May 15, 2017 · 2 in (hen egg) · Calmar (10 mi from Decorah)
Jul 24, 2009 · 1.75 in (golf ball) · Calmar (9 mi from Decorah)
National Weather Service description (English): Hail the size of golf balls was reported along Highway 52.Jun 29, 2014 · 1.75 in (golf ball) · Calmar (9 mi from Decorah)
Aug 18, 2014 · 1.75 in (golf ball) · Decorah Muni Airport (4 mi from Decorah)
National Weather Service description (English): Golf ball sized hail shredded leaves southeast of Decorah.Tornadoes within 10 miles of Decorah
| Date | Rating | Where |
|---|---|---|
| Aug 5, 2024 | EF0 | Bluffton 8 mi from Decorah |
| Aug 5, 2024 | EF0 | Locust 6 mi from Decorah |
| May 17, 2017 | EF0 | Bluffton 7 mi from Decorah |
| Aug 19, 2009 | EF0 | Calmar 8 mi from Decorah |
Damaging thunderstorm winds near Decorah
50 reports of damaging thunderstorm wind within 10 miles of Decorah since 2006, on 33 days. The strongest measured gust was 82 mph on May 15, 2017.
| Date | Strongest gust | Where |
|---|---|---|
| Jul 29, 2025 | 58 mph, estimated | Decorah 1 wind report |
| Aug 5, 2024 | 75 mph, estimated | Locust, Bluffton, Decorah Muni Airport 5 wind reports |
| Jun 12, 2024 | 58 mph, estimated | Calmar 1 wind report |
| Aug 27, 2022 | 44 mph, estimated | Decorah Muni Airport 1 wind report |
| Jul 23, 2022 | 68 mph, estimated | Calmar, Decorah, Decorah Muni Airport 4 wind reports |
| Jun 15, 2022 | 58 mph, estimated | Bluffton 1 wind report |
| Apr 12, 2022 | 62 mph, estimated | Bluffton, Ridgeway, Haugendale 3 wind reports |
| Aug 27, 2021 | 52 mph, estimated | Calmar 1 wind report |
| Jul 9, 2020 | 58 mph, estimated | Calmar 1 wind report |
| May 26, 2020 | 63 mph, measured | Decorah Muni Airport, Decorah 2 wind reports |
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 Decorah; 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.
Nearby cities
- Waukon
9 hail days - Cresco
17 hail days - Caledonia
18 hail days - New Hampton
20 hail days - Prairie du Chien
15 hail days
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Decorah.
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