Hail history for Fond du Lac County, Wisconsin
Every NOAA hail report filed in Fond du Lac County since 1956, with preliminary National Weather Service reports to November 3, 2026.
Readout · Fond du Lac County
- Last hail
- Aug 18, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 8
- since Nov 3, 2021 · 26 reports
- Largest ever
- 3.25 in
- teacup · Jul 1, 2026
119 reports on 69 days since 1956 · #37 of 73 Wisconsin counties
Hail map · Fond du Lac 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 Fond du Lac County is from August 18, 2026. A local roofer can check and document it at no cost.
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What the record says about Fond du Lac County
The latest hail report in Fond du Lac County is from August 18, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 8 separate hail days; the biggest stones in that time were 3.25 in on July 1, 2026.
Over the 20 years 2006–2025, Fond du Lac County logged 59 reports on 36 hail days, about 3.0 reports a year. That is 16% less than the median Wisconsin county (3.5 a year) and ranks #37 of 73 Wisconsin counties for all-time reports. Fond du Lac County holds 1% of all 9,358 hail reports in Wisconsin.
13% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Wisconsin county. The largest hail on record here is 3.25 in (teacup) on July 1, 2026 near 2.94 NNW Hamilton.
Reports were down 36% in 2016–2025 (23) compared with 2006–2015 (36). The busiest year was 2026, with 22 reports on 4 days. Hail here peaks in July (35% of reports); 31% fall between April and June.
Reports a year 2006–2025 average
- Fond du Lac County 3.0
- Median Wisconsin county 3.5
Hail days 2006–2025
- Fond du Lac County 36
- Median Wisconsin county 37
Share 2 in or larger of sized reports
- Fond du Lac County 13%
- Median Wisconsin county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 18 | 2 | 22 | ||||||||
| 2025 | 1 | 1 | 2 | ||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 7 | 7 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 3 | 1 | 4 | ||||||||||
| 2017 | 1 | 1 | 1 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 18, 2026 | 2 | 1.00 in | View |
| Jul 1, 2026 | 18 | 3.25 in | — |
| Jun 16, 2026 | 1 | 1.00 in | — |
| Apr 14, 2026 | 1 | 1.00 in | — |
| Aug 16, 2025 | 1 | 0.88 in | — |
| May 15, 2025 | 1 | 1.25 in | — |
| Jul 22, 2023 | 1 | 0.88 in | — |
| Jul 16, 2023 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 1, 2026 | 3.25 inteacup | 2.94 NNW Hamilton | 11:28 local · NCEI |
| Sep 7, 2021 | 3.00 inteacup | 1.47 NNE North Fond Du Lac | 09:10 local · NCEI |
| Jun 14, 1991 | 2.75 inbaseball | — | 15:30 local · NCEI |
| Jul 1, 2026 | 2.50 intennis ball | 2.94 NNW Marblehead | 11:25 local · NCEI |
| Jul 1, 2026 | 2.50 intennis ball | 2 W Rogersville | 11:00 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 41 34%
- 1–2 in 63 53%
- 2 in + 15 13%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 18, 2026 | 1.00 inquarter | 1 SSE Fond Du Lac | 21:50 UTC · NWS prelim. |
| Aug 18, 2026 | 1.00 inquarter | 1 NE Fond Du Lac | 21:50 UTC · NWS prelim. |
| Jul 1, 2026 | 1.50 inping pong ball | 2.76 S Taycheedah | 11:38 local · NCEI |
| Jul 1, 2026 | 1.25 inhalf dollar | 2.13 NNW Hamilton | 11:30 local · NCEI |
| Jul 1, 2026 | 1.50 inping pong ball | 2.76 N Marblehead | 11:30 local · NCEI |
| Jul 1, 2026 | 1.50 inping pong ball | 2.3 SSE Fond Du Lac | 11:30 local · NCEI |
| Jul 1, 2026 | 3.25 inteacup | 2.94 NNW Hamilton | 11:28 local · NCEI |
| Jul 1, 2026 | 1.00 inquarter | 1.38 S Fond Du Lac | 11:26 local · NCEI |
| Jul 1, 2026 | 2.00 inhen egg | 1.71 NW Marblehead | 11:25 local · NCEI |
| Jul 1, 2026 | 2.50 intennis ball | 2.94 NNW Marblehead | 11:25 local · NCEI |
| Jul 1, 2026 | 1.75 ingolf ball | 2.88 SE Fond Du Lac | 11:25 local · NCEI |
| Jul 1, 2026 | 1.75 ingolf ball | 2.04 SE Fond Du Lac Airport | 11:24 local · NCEI |
Cities and towns in Fond du Lac County
| Place | Reports | Largest |
|---|---|---|
| Fond du Lac | 50 | 3.25 in |
| Ripon | 11 | 2.00 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 |
|---|---|---|---|
| Campbellsport | 7 | 7 | May 15, 2025 |
| Alto | 5 | 4 | Jun 15, 2016 |
| Brandon | 3 | 3 | Jul 1, 2026 |
| Eden | 3 | 3 | Jun 3, 2017 |
| St. Peter | 3 | 3 | Jul 28, 2020 |
| Brothertown | 2 | 2 | Oct 18, 2007 |
| North Fond du Lac | 2 | 2 | Jul 31, 2014 |
| Oakfield | 2 | 2 | Aug 14, 2015 |
| Rosendale | 2 | 2 | Aug 2, 2015 |
| Mount Calvary | 1 | 1 | Oct 18, 2007 |
Questions about hail in Fond du Lac County
How often does it hail in Fond du Lac County, Wisconsin?
119 hail reports have been logged in Fond du Lac County since 1956. Over the 20 years 2006–2025 that averages 3.0 reports a year. That ranks #37 of 73 Wisconsin counties by number of reports.
When is hail season in Fond du Lac County?
Most reports come in July, June, August. July alone accounts for 35% of all reports.
What is the largest hail recorded in Fond du Lac County?
3.25 in (teacup size) on July 1, 2026 near 2.94 NNW Hamilton. 13% of reports here were 2 inches or larger.
When did it last hail in Fond du Lac County?
The most recent report in this data is from August 18, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Fond du Lac County had in the last five years?
8 separate days with hail reports since November 3, 2021, adding up to 26 reports. The most recent was August 18, 2026.
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.