Woodbury County, IA hail & severe wind history
290 storm reports on file for Woodbury County between 2010-06-11 and 2026-06-30 — 129 hail and 161 severe thunderstorm wind. That averages 17.1 reports a year, and Jun is the busiest month.
At a glance
- Most recent hail report: Jun 30, 2026 — 1" (quarter), 0.86 mi SE of Sioux City.
- Hail was reported on 52 days since 2010 — about 3.1 hail days a year.
- Largest hail on record: 2.75" (baseball) on May 12, 2011.
- Woodbury County has more hail reports than 94% of the 99 Iowa counties we cover.
Search every Woodbury 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 Woodbury County storm reports…
Worst storm days in Woodbury County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2026-05-17 | 21 | — | 96 mph |
| 2014-06-20 | 11 | 1.5" (ping pong ball) | 60 mph |
| 2011-06-26 | 11 | — | 75 mph |
| 2021-12-15 | 10 | — | 85 mph |
| 2012-05-19 | 9 | 1" (quarter) | 70 mph |
| 2024-07-29 | 9 | — | 75 mph |
| 2016-04-24 | 8 | 1.75" (golf ball) | 64 mph |
| 2011-04-09 | 8 | 1.25" (half dollar) | — |
| 2024-06-12 | 7 | 2" (hen egg) | — |
| 2017-06-29 | 7 | 1.75" (golf ball) | 60 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 |
|---|---|---|---|
| 2026-05-15 | 2" hen egg | .69 mi S of Anthon | Photo of two-inch hail was provided. Damage occurred to light fixtures and trees. |
| 2024-06-12 | 2" hen egg | .51 mi E of Sloan | No narrative filed |
| 2011-05-12 | 2.75" baseball | 0 mi N of Smithland | Large hail dented vehicles and cracked windows. The amount of damage was not known. |
When does hail hit Woodbury County?
Across 17 years of records, June produced the most reports (100), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 4 | 1.4% |
| April | 31 | 10.7% |
| May | 68 | 23.4% |
| June | 100 | 34.5% |
| July | 29 | 10.0% |
| August | 35 | 12.1% |
| September | 7 | 2.4% |
| October | 4 | 1.4% |
| November | 2 | 0.7% |
| December | 10 | 3.4% |
Neighboring counties
Counties that share a border with Woodbury County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Plymouth County, IA | 183 | 2.75" |
| Union County, SD | 118 | 1.75" |
| Cherokee County, IA | 115 | 4" |
| Ida County, IA | 105 | 2.5" |
| Crawford County, IA | 101 | 2.75" |
| Monona County, IA | 72 | 3.5" |
| Thurston County, NE | 70 | 1.75" |
| Dakota County, NE | 44 | 4.25" |
Common questions about hail in Woodbury County
- How often does it hail in Woodbury County?
- Hail was reported on 52 separate days between 2010 and 2026, about 3.1 days a year, with June the busiest month for storm reports. 89 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 19193). 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.