Hail history for Winnebago, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Winnebago since 1967, with preliminary reports to November 3, 2026.
Readout · Winnebago
- Last hail
- Apr 15, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 3.00 in
- teacup · Apr 7, 2020
13 reports on 13 days since 1967 · #243 of 378 Illinois places
Hail map · Winnebago
- 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 is from April 15, 2026. A local roofer can check and document it at no cost.
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What the record says about Winnebago
The latest hail report in and around Winnebago is from April 15, 2026, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on April 15, 2026.
Over the 20 years 2006–2025, Winnebago logged 9 reports on 9 hail days, about 0.5 reports a year. That is 10% less than the median Illinois town on this site (0.5 a year) and ranks #243 of 378 Illinois cities and towns on this site for all-time reports. Winnebago accounts for 6% of the 217 reports filed in Winnebago County.
8% of reports with a size were 2 inches (hen egg) or larger, against 4% for the median Illinois town on this site. The largest hail on record here is 3.00 in (teacup) on April 7, 2020 near Winnebago.
Reports were up 100% in 2016–2025 (6) compared with 2006–2015 (3). The busiest year was 2020, with 3 reports on 3 days. Hail here peaks in April (31% of reports); 69% fall between April and June.
Reports a year 2006–2025 average
- Winnebago 0.5
- Winnebago County 7.3
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Winnebago 9
- Winnebago County 67
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Winnebago 8%
- Winnebago County 7%
- Median Illinois town on this site 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | 1 | 3 | |||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 15, 2026 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 7, 2020 | 3.00 inteacup | Winnebago | Winnebago | 18:12 local · NCEI |
| Jul 20, 2017 | 1.75 ingolf ball | Winnebago | Winnebago | 02:58 local · NCEI |
| May 17, 2017 | 1.75 ingolf ball | 1.91 NNW West End | Winnebago | 17:17 local · NCEI |
| Jun 8, 2011 | 1.75 ingolf ball | 1.91 NNW West End | Winnebago | 21:03 local · NCEI |
| Sep 17, 1972 | 1.75 ingolf ball | — | Winnebago | 16:00 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 4 31%
- 1–2 in 8 62%
- 2 in + 1 8%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 15, 2026 | 1.00 inquarter | 0.51 W Winnebago | Winnebago | 19:20 local · NCEI |
| Nov 10, 2020 | 1.00 inquarter | 0.65 WSW Winnebago | Winnebago | 15:35 local · NCEI |
| May 23, 2020 | 1.00 inquarter | 2 WNW Winnebago | Winnebago | 13:53 local · NCEI |
| Apr 7, 2020 | 3.00 inteacup | Winnebago | Winnebago | 18:12 local · NCEI |
| May 2, 2018 | 1.00 inquarter | Winnebago | Winnebago | 16:54 local · NCEI |
| Jul 20, 2017 | 1.75 ingolf ball | Winnebago | Winnebago | 02:58 local · NCEI |
| May 17, 2017 | 1.75 ingolf ball | 1.91 NNW West End | Winnebago | 17:17 local · NCEI |
| May 26, 2012 | 0.75 inpenny | 1.92 NNW West End | Winnebago | 04:13 local · NCEI |
| Jun 8, 2011 | 1.75 ingolf ball | 1.91 NNW West End | Winnebago | 21:03 local · NCEI |
| Apr 19, 2011 | 0.88 innickel | 1.91 NNW West End | Winnebago | 16:22 local · NCEI |
| Apr 5, 1988 | 0.75 inpenny | — | Winnebago | 18:20 local · NCEI |
| Sep 17, 1972 | 1.75 ingolf ball | — | Winnebago | 16:00 local · NCEI |
Hail history near Winnebago
- Pecatonica 11 km · 12
- Rockford 14 km · 114
- Machesney Park 21 km · 13
- Lake Summerset 24 km · 11
- Rockton 24 km · 10
- Roscoe 26 km · 11
- Dakota 28 km · 11
- Belvidere 29 km · 35
Questions about hail in Winnebago
How often does it hail in Winnebago, Illinois?
13 hail reports have been logged in and within about 5 km (3 miles) of Winnebago since 1967. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #243 of 378 Illinois places by number of reports.
When is hail season in Winnebago?
Most reports come in April, May, July. April alone accounts for 31% of all reports.
What is the largest hail recorded in Winnebago?
3.00 in (teacup size) on April 7, 2020 near Winnebago. 8% of reports here were 2 inches or larger.
When did it last hail in Winnebago?
The most recent report in this data is from April 15, 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 Winnebago had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was April 15, 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.