Hail history for Winnebago County, Iowa
Every NOAA hail report filed in Winnebago County since 1961, with preliminary National Weather Service reports to November 3, 2026.
Readout · Winnebago County
- Last hail
- Jun 20, 2025
- 1.75 in, golf ball size
- Hail days, last 5 years
- 4
- since Nov 3, 2021 · 6 reports
- Largest ever
- 3.50 in
- teacup · Jun 22, 1997
105 reports on 60 days since 1961 · #80 of 100 Iowa counties
Hail map · Winnebago County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Winnebago County is from June 20, 2025. A local roofer can check and document it at no cost.
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What the record says about Winnebago County
The latest hail report in Winnebago County is from June 20, 2025, 1.75 in (golf ball size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.75 in on June 20, 2025.
Over the 20 years 2006–2025, Winnebago County logged 46 reports on 25 hail days, about 2.3 reports a year. That is 38% less than the median Iowa county (3.7 a year) and ranks #80 of 100 Iowa counties for all-time reports. Winnebago County holds 1% of all 16,032 hail reports in Iowa.
9% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Iowa county. The largest hail on record here is 3.50 in (teacup) on June 22, 1997 near Forest City.
Reports were down 36% in 2016–2025 (18) compared with 2006–2015 (28). The busiest year was 2004, with 11 reports on 5 days. Hail here peaks in June (32% of reports); 69% fall between April and June.
Reports a year 2006–2025 average
- Winnebago County 2.3
- Median Iowa county 3.7
Hail days 2006–2025
- Winnebago County 25
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Winnebago County 9%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | 2 | ||||||||||
| 2024 | 3 | 3 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 2 | 2 | 4 | ||||||||||
| 2017 | 2 | 4 | 1 | 7 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 20, 2025 | 1 | 1.75 in | — |
| Apr 28, 2025 | 1 | 1.25 in | — |
| Sep 19, 2024 | 3 | 1.00 in | — |
| Jul 23, 2022 | 1 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 22, 1997 | 3.50 inteacup | Forest City | $1.5 million | 20:00 local · NCEI |
| Jun 7, 2008 | 3.00 inteacup | 2.44 SW Scarville | $15K | 14:55 local · NCEI |
| May 11, 1962 | 3.00 inteacup | — | — | 09:00 local · NCEI |
| Oct 4, 2006 | 2.75 inbaseball | 6 ENE Scarville | $25K | 02:00 local · NCEI |
| Jun 9, 2018 | 2.50 intennis ball | 2.3 NNW Leland | $20K | 13:55 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 37 35%
- 1–2 in 59 56%
- 2 in + 9 9%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 20, 2025 | 1.75 ingolf ball | 0.5 W Leland | — | 05:08 local · NCEI |
| Apr 28, 2025 | 1.25 inhalf dollar | 4.87 SE Rake | — | 17:54 local · NCEI |
| Sep 19, 2024 | 1.00 inquarter | Lake Mills | — | 13:50 local · NCEI |
| Sep 19, 2024 | 1.00 inquarter | Lake Mills | — | 13:35 local · NCEI |
| Sep 19, 2024 | 1.00 inquarter | Lake Mills | — | 13:23 local · NCEI |
| Jul 23, 2022 | 1.25 inhalf dollar | 1.66 ESE Forest City | — | 13:18 local · NCEI |
| Jul 25, 2018 | 1.00 inquarter | 4.41 NNE Neils | — | 16:00 local · NCEI |
| Jul 25, 2018 | 0.75 inpenny | 6.17 WSW Vinje | — | 15:47 local · NCEI |
| Jun 9, 2018 | 2.00 inhen egg | 0.5 W Leland | $20K | 14:00 local · NCEI |
| Jun 9, 2018 | 2.50 intennis ball | 2.3 NNW Leland | $20K | 13:55 local · NCEI |
| Jun 16, 2017 | 0.88 innickel | Thompson | — | 15:36 local · NCEI |
| May 16, 2017 | 1.00 inquarter | 0.5 W Leland | — | 20:31 local · NCEI |
Cities and towns in Winnebago County
| Place | Reports | Largest |
|---|---|---|
| Forest City | 29 | 3.50 in |
| Buffalo Center | 14 | 3.00 in |
| Lake Mills | 10 | 1.50 in |
| Thompson | 10 | 1.75 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Scarville | 7 | 4 | Jun 7, 2008 |
| Leland | 4 | 3 | Jun 20, 2025 |
| Rake | 3 | 3 | May 15, 2017 |
Questions about hail in Winnebago County
How often does it hail in Winnebago County, Iowa?
105 hail reports have been logged in Winnebago County since 1961. Over the 20 years 2006–2025 that averages 2.3 reports a year. That ranks #80 of 100 Iowa counties by number of reports.
When is hail season in Winnebago County?
Most reports come in June, May, July. June alone accounts for 32% of all reports.
What is the largest hail recorded in Winnebago County?
3.50 in (teacup size) on June 22, 1997 near Forest City. 9% of reports here were 2 inches or larger.
When did it last hail in Winnebago County?
The most recent report in this data is from June 20, 2025 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Winnebago County had in the last five years?
4 separate days with hail reports since November 3, 2021, adding up to 6 reports. The most recent was June 20, 2025.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.