Woodbury County, Iowa: hail history 2014–2026
By density Woodbury County lands #20 of 67 in Iowa: 104.8 reports per 1,000 square miles from 92 reports. Hail reached 1 inch on 26 days and 1.75 inches on 9. June 12, 2024 near Sloan: 2 inches (a hen egg), the largest stone.
- 92reports
- 26days, 1 in+
- 9days, 1.75 in+
- 2 inlargest stone
Hail since my roof went on: Woodbury County
Year by year
| Year | Reports | Days 1 in+ | Days 1.75 in+ | Largest |
|---|---|---|---|---|
| 2014 | 17 | 3 | 0 | 1.5 in |
| 2015 | 7 | 1 | 1 | 1.75 in |
| 2016 | 10 | 2 | 2 | 1.75 in |
| 2017 | 6 | 1 | 1 | 1.75 in |
| 2018 | 5 | 1 | 0 | 1.25 in |
| 2019 | 3 | 0 | 0 | 0.88 in |
| 2020 | 2 | 1 | 0 | 1 in |
| 2021 | 1 | 1 | 1 | 1.75 in |
| 2022 | 4 | 1 | 1 | 1.75 in |
| 2023 | 6 | 4 | 0 | 1.25 in |
| 2024 | 11 | 5 | 1 | 2 in |
| 2025 | 3 | 0 | 0 | 0.88 in |
| 2026 (Jan–Jun) | 17 | 6 | 2 | 2 in |
2014 was the busiest year (17 reports) and 2021 the quietest (1). Woodbury County averaged 4 reports a year from 2020 to 2025, 44% under the 8 of 2014 to 2019. 2026 stands at 17 through June, already past the full-year average of 6. Days with 1-inch stones average 1.7 per full year.
Woodbury County: reports by month
| Jan | 0 |
|---|---|
| Feb | 0 |
| Mar | 0 |
| Apr | 20 |
| May | 18 |
| Jun | 43 |
| Jul | 1 |
| Aug | 5 |
| Sep | 3 |
| Oct | 0 |
| Nov | 2 |
| Dec | 0 |
June dominates the calendar: 43 of 92 reports, 47%. April to June alone bring 88%. 2 of 92 reports fell outside April to September.
Largest stone: 2 inches
Reported hail locations, Woodbury County
- 561 to 1.74 in
- 101.75 to 2.74 in, golf ball to tennis ball
- 02.75 in and up, baseball
Largest plotted stone: 2 in. Bigger dots are bigger stones.
66 reports of 1 inch or larger have coordinates. Each dot is a reported location, not a storm path.
Sources: NOAA, Census county outlineWoodbury County’s ten biggest hail days
| Date | Size | Reports | Place |
|---|---|---|---|
| June 12, 2024 | 2 in, a hen egg | 7 | Sloan |
| May 15, 2026 | 2 in, a hen egg | 5 | Anthon |
| April 24, 2016 | 1.75 in, a golf ball | 7 | Correctionville |
| June 29, 2017 | 1.75 in, a golf ball | 6 | Climbing Hill |
| August 9, 2015 | 1.75 in, a golf ball | 4 | Correctionville |
| April 12, 2022 | 1.75 in, a golf ball | 4 | Correctionville |
| May 9, 2016 | 1.75 in, a golf ball | 3 | Sioux City |
| May 18, 2026 | 1.75 in, a golf ball | 3 | Correctionville |
| June 22, 2021 | 1.75 in, a golf ball | 1 | Pierson |
| June 20, 2014 | 1.5 in, a ping-pong ball | 10 | Sioux City |
“Photo of two-inch hail was provided. Damage occurred to light fixtures and trees.”
NWS report, May 15, 2026
“Thunderstorms produced large hail and damaging winds at several locations in northwest Iowa during the late afternoon of April 24th.”
NWS report, April 24, 2016
Tornadoes and wind in Woodbury County
8 tornadoes on record in Woodbury County; the strongest listed is EF2, 8.44 miles long, near Bronson. Top gust: 96 mph near Salix.
| Date | Rating | Path length | Width | Near |
|---|---|---|---|---|
| December 15, 2021 | EF2 | 8.44 mi | 100 yd | Bronson |
| December 15, 2021 | EF1 | 4.56 mi | 75 yd | Salix |
| December 15, 2021 | EF1 | 4.28 mi | 75 yd | Moville |
| May 17, 2026 | EF1 | 3.85 mi | 100 yd | Sergeant Bluff |
| May 17, 2026 | EF0 | 2.53 mi | 75 yd | Sergeant Bluff |
| December 15, 2021 | EFU | 0.8 mi | 20 yd | Salix |
| May 22, 2026 | EFU | 0.58 mi | 30 yd | Oto |
| May 12, 2022 | EFU | 0.08 mi | 50 yd | Sergeant Bluff |
| Date | Gust | Near |
|---|---|---|
| May 17, 2026 | 96 mph | Salix |
| May 17, 2026 | 96 mph | Salix |
| May 17, 2026 | 96 mph | Salix |
| May 17, 2026 | 90 mph | Salix |
| May 17, 2026 | 87 mph | Correctionville |
| December 15, 2021 | 85 mph | Anthon |
Homes in Woodbury County
Median build year in Woodbury County: 1958. 89.1% of 43,121 homes predate 2000. Houses permitted since 2014: 1,463, or 33.9 per 1,000 homes. Busiest year: 2017.
| pre-1940 | 31.2% |
|---|---|
| 1940s | 8.1% |
| 1950s | 13.9% |
| 1960s | 10.2% |
| 1970s | 12.8% |
| 1980s | 5.6% |
| 1990s | 7.3% |
| 2000s | 5.3% |
| 2010s | 4.9% |
| 2020+ | 0.7% |
| Year | Houses | All units |
|---|---|---|
| 2014 | 129 | 151 |
| 2015 | 146 | 289 |
| 2016 | 149 | 277 |
| 2017 | 163 | 185 |
| 2018 | 89 | 161 |
| 2019 | 114 | 390 |
| 2020 | 147 | 566 |
| 2021 | 140 | 235 |
| 2022 | 116 | 231 |
| 2023 | 57 | 163 |
| 2024 | 76 | 172 |
| 2025 | 137 | 238 |
Quick answers
How many hail reports has Woodbury County had?
NOAA logged 92 hail reports in Woodbury County, Iowa, from 2014 to June 2026.
How many days had hail of 1 inch or larger in Woodbury County?
26 days, including 9 days with hail of 1.75 inches or larger. The National Weather Service calls hail of 1 inch or larger severe.
What was the largest hail reported in Woodbury County?
2 inches (a hen egg), reported on June 12, 2024.
Which month has the most hail in Woodbury County?
June has the most reports, 47% of the 92 in the record.
Does a hail day in the record mean my roof was damaged?
A counted day only means a spotter reported hail somewhere in the area. An inspection is the only way to know whether a roof was hit.
Next steps for Woodbury County
Woodbury County cities we cover
Next to Woodbury County in the Iowa ranking
- Linn County (175 reports)
- Story County (153 reports)
- Scott County (128 reports)
- Johnson County (109 reports)
Cite this page
Data version: NOAA Storm Events hail data, 2014 to June 2026, loaded October 6, 2026. All dataset versions. Download the table as CSV. Free to quote with credit under CC BY 4.0.
Source: NOAA Storm Events Database, public domain. Counts and tables on this page are free to reuse with credit to PickARoofer under CC BY 4.0.