Hail history for McHenry, Illinois
NOAA hail reports in and within about 5 km (3 miles) of McHenry since 1980, with preliminary reports to November 3, 2026.
Readout · McHenry
- Last hail
- Aug 27, 2024
- 1.00 in, quarter size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Apr 12, 1996
14 reports on 14 days since 1980 · #204 of 378 Illinois places
Hail map · McHenry
- 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 McHenry is from August 27, 2024. A local roofer can check and document it at no cost.
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What the record says about McHenry
The latest hail report in and around McHenry is from August 27, 2024, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on August 27, 2024.
Over the 20 years 2006–2025, McHenry 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 #204 of 378 Illinois cities and towns on this site for all-time reports. McHenry accounts for 7% of the 196 reports filed in McHenry County.
0% 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 1.75 in (golf ball) on April 12, 1996 near Mc Henry.
Reports were down 20% in 2016–2025 (4) compared with 2006–2015 (5). The busiest year was 2015, with 2 reports on 2 days. Hail here peaks in April (36% of reports); 71% fall between April and June.
Reports a year 2006–2025 average
- McHenry 0.5
- McHenry County 7.2
- Median Illinois town on this site 0.5
Hail days 2006–2025
- McHenry 9
- McHenry County 59
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- McHenry 0%
- McHenry County 3%
- 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 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 27, 2024 | 1 | 1.00 in | — |
| Jul 22, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 12, 1996 | 1.75 ingolf ball | Mc Henry | Mchenry | 13:40 local · NCEI |
| Apr 22, 1988 | 1.75 ingolf ball | — | Mchenry | 21:20 local · NCEI |
| Aug 2, 2015 | 1.25 inhalf dollar | 0.35 WNW Mccullom Lake | Mchenry | 20:59 local · NCEI |
| Aug 27, 2024 | 1.00 inquarter | 0.51 W Mchenry | Mchenry | 17:09 local · NCEI |
| Jul 22, 2022 | 1.00 inquarter | 1 W Mchenry | Mchenry | 23:59 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 29%
- 1–2 in 10 71%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 27, 2024 | 1.00 inquarter | 0.51 W Mchenry | Mchenry | 17:09 local · NCEI |
| Jul 22, 2022 | 1.00 inquarter | 1 W Mchenry | Mchenry | 23:59 local · NCEI |
| Apr 10, 2017 | 1.00 inquarter | 0.86 SE Mc Cullom Lake | Mchenry | 15:41 local · NCEI |
| Apr 25, 2016 | 1.00 inquarter | Mc Henry | Mchenry | 15:40 local · NCEI |
| Aug 2, 2015 | 1.25 inhalf dollar | 0.35 WNW Mccullom Lake | Mchenry | 20:59 local · NCEI |
| Apr 9, 2015 | 1.00 inquarter | 1.35 SSE Mc Cullom Lake | Mchenry | 19:15 local · NCEI |
| Jun 12, 2013 | 1.00 inquarter | Mc Henry | Mchenry | 18:28 local · NCEI |
| May 11, 2011 | 1.00 inquarter | 0.33 S Mc Henry | Mchenry | 16:04 local · NCEI |
| Oct 2, 2006 | 0.88 innickel | 0.86 SW Mc Cullom Lake | Mchenry | 19:34 local · NCEI |
| Jun 23, 2004 | 0.75 inpenny | Mc Henry | Mchenry | 16:45 local · NCEI |
| May 18, 2000 | 0.75 inpenny | Mc Henry | Mchenry | 12:33 local · NCEI |
| Apr 12, 1996 | 1.75 ingolf ball | Mc Henry | Mchenry | 13:40 local · NCEI |
Hail history near McHenry
- Woodstock 12 km · 28
- Crystal Lake 12 km · 27
- Lake in the Hills 18 km · 18
- Huntley 23 km · 22
- Barrington Hills 23 km · 16
- Lindenhurst 24 km · 14
- Mundelein 24 km · 11
- Marengo 27 km · 27
Questions about hail in McHenry
How often does it hail in McHenry, Illinois?
14 hail reports have been logged in and within about 5 km (3 miles) of McHenry since 1980. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #204 of 378 Illinois places by number of reports.
When is hail season in McHenry?
Most reports come in April, June, May. April alone accounts for 36% of all reports.
What is the largest hail recorded in McHenry?
1.75 in (golf ball size) on April 12, 1996 near Mc Henry. 0% of reports here were 2 inches or larger.
When did it last hail in McHenry?
The most recent report in this data is from August 27, 2024 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has McHenry had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was August 27, 2024.
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.