Mitchell County, IA hail & severe wind history
81 storm reports on file for Mitchell County between 2010-06-17 and 2025-09-22 — 33 hail and 48 severe thunderstorm wind. That averages 5.1 reports a year, and May is the busiest month.
At a glance
- Most recent hail report: Sep 22, 2025 — 1" (quarter), 1.71 mi NW of St Ansgar Arpt.
- Hail was reported on 19 days since 2010 — about 1.2 hail days a year.
- Largest hail on record: 2.5" (tennis ball) on Apr 9, 2017.
- Mitchell County has more hail reports than 14% of the 99 Iowa counties we cover.
Search every Mitchell County report
Check a single date first, or filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the larger stones (1", quarter size, is the National Weather Service severe threshold).
Loading Mitchell County storm reports…
Worst storm days in Mitchell County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2013-04-09 | 6 | 1.75" (golf ball) | — |
| 2013-05-19 | 5 | 1" (quarter) | 69 mph |
| 2021-12-15 | 5 | — | 77 mph |
| 2017-07-19 | 5 | — | 70 mph |
| 2017-04-09 | 4 | 2.5" (tennis ball) | — |
| 2011-09-02 | 4 | — | 70 mph |
| 2011-04-09 | 3 | 2" (hen egg) | — |
| 2022-05-09 | 3 | 1.75" (golf ball) | — |
| 2020-06-02 | 3 | — | 52 mph |
| 2014-06-16 | 3 | — | 64 mph |
Reports by year
Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.
Notable large-hail events (2" and up)
| Date | Size | Near | What was reported |
|---|---|---|---|
| 2017-04-09 | 2.5" tennis ball | 1.66 mi WNW of Meyer | Tennis ball sized hail was reported northeast of Stacyville. |
| 2011-04-09 | 2" hen egg | .5 mi E of St Ansgar | Hail up to two inches in diameter fell in St. Ansgar. |
When does hail hit Mitchell County?
Across 16 years of records, May produced the most reports (22), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 3 | 3.7% |
| April | 13 | 16.0% |
| May | 22 | 27.2% |
| June | 15 | 18.5% |
| July | 18 | 22.2% |
| August | 0 | 0.0% |
| September | 5 | 6.2% |
| October | 0 | 0.0% |
| November | 0 | 0.0% |
| December | 5 | 6.2% |
Neighboring counties
Counties that share a border with Mitchell County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Cerro Gordo County, IA | 183 | 1.75" |
| Floyd County, IA | 168 | 3.25" |
| Chickasaw County, IA | 76 | 2.75" |
| Howard County, IA | 76 | 3.5" |
| Worth County, IA | 67 | 1.75" |
Common questions about hail in Mitchell County
- How often does it hail in Mitchell County?
- Hail was reported on 19 separate days between 2010 and 2025, about 1.2 days a year, with May the busiest month for storm reports. 19 reports were quarter size (1") or larger.
- Does a report here mean hail hit my street?
- Not necessarily. Each report is one observation tied to a nearby landmark, and a county can be large. Storms also go unreported where few people live. Use the date check above to see what was reported nearby, and treat it as a starting point.
- How big is a 1.75" hailstone?
- Forecasters describe hail by everyday objects: 1" is a quarter, 1.75" a golf ball, 2.75" a baseball. The sizes in these reports are estimates made by the person reporting, not lab measurements.
- Where do I get the official record?
- All reports here come from the NOAA NCEI Storm Events Database, which you can search directly. For anything formal, use NOAA’s own records rather than this page.
Look up another place
About these numbers
Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 19131). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.