Hail history for Hamilton County, Illinois
Every NOAA hail report filed in Hamilton County since 1964, with preliminary National Weather Service reports to November 3, 2026.
Readout · Hamilton County
- Last hail
- Jul 28, 2024
- 0.75 in, penny size
- Hail days, last 5 years
- 4
- since Nov 3, 2021 · 5 reports
- Largest ever
- 2.00 in
- hen egg · Jul 7, 1964
44 reports on 36 days since 1964 · #95 of 103 Illinois counties
Hail map · Hamilton County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Hamilton County
The latest hail report in Hamilton County is from July 28, 2024, 0.75 in (penny size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.25 in on August 29, 2022.
Over the 20 years 2006–2025, Hamilton County logged 28 reports on 23 hail days, about 1.4 reports a year. That is about half the median Illinois county (2.6 a year) and ranks #95 of 103 Illinois counties for all-time reports. Hamilton County holds 0% of all 12,418 hail reports in Illinois.
2% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Illinois county. The largest hail on record here is 2.00 in (hen egg) on July 7, 1964.
Reports were down 44% in 2016–2025 (10) compared with 2006–2015 (18). The busiest year was 2002, with 8 reports on 6 days. Hail here peaks in April (36% of reports); 55% fall between April and June.
Reports a year 2006–2025 average
- Hamilton County 1.4
- Median Illinois county 2.6
Hail days 2006–2025
- Hamilton County 23
- Median Illinois county 34
Share 2 in or larger of sized reports
- Hamilton County 2%
- Median Illinois county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | 2 | ||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 28, 2024 | 1 | 0.75 in | — |
| May 26, 2024 | 1 | 1.00 in | — |
| Jun 30, 2023 | 1 | 1.00 in | — |
| Aug 29, 2022 | 2 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 7, 1964 | 2.00 inhen egg | — | 17:14 local · NCEI |
| Aug 6, 2019 | 1.75 ingolf ball | 6 N Mc Leansboro | 14:24 local · NCEI |
| May 27, 2017 | 1.75 ingolf ball | Mc Leansboro | 13:42 local · NCEI |
| Mar 11, 2006 | 1.75 ingolf ball | 6 N Mc Leansboro | 03:30 local · NCEI |
| May 26, 2004 | 1.75 ingolf ball | 1 NE Dahlgren | 09:06 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 21 48%
- 1–2 in 22 50%
- 2 in + 1 2%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 28, 2024 | 0.75 inpenny | 1.48 ENE Blairsville | — | 17:49 local · NCEI |
| May 26, 2024 | 1.00 inquarter | Dahlgren | — | 18:59 local · NCEI |
| Jun 30, 2023 | 1.00 inquarter | Rural Hill | — | 18:02 local · NCEI |
| Aug 29, 2022 | 1.00 inquarter | 4 S Dahlgren | — | 17:44 local · NCEI |
| Aug 29, 2022 | 1.25 inhalf dollar | 4 NW Flint | — | 17:25 local · NCEI |
| Aug 6, 2019 | 1.75 ingolf ball | 6 N Mc Leansboro | — | 14:24 local · NCEI |
| May 31, 2018 | 1.25 inhalf dollar | 3.4 E Broughton | — | 18:55 local · NCEI |
| May 27, 2017 | 1.75 ingolf ball | Mc Leansboro | — | 13:42 local · NCEI |
| Apr 5, 2017 | 1.25 inhalf dollar | Mc Leansboro | — | 14:22 local · NCEI |
| Apr 26, 2016 | 1.00 inquarter | 2 NE Bell Prairie City | — | 15:02 local · NCEI |
| Jul 23, 2014 | 0.75 inpenny | Mc Leansboro | — | 07:15 local · NCEI |
| Feb 20, 2014 | 1.00 inquarter | 1 S Mc Leansboro | $100K | 17:35 local · NCEI |
Cities and towns in Hamilton County
| Place | Reports | Largest |
|---|---|---|
| McLeansboro | 24 | 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 |
|---|---|---|---|
| Dahlgren | 7 | 7 | May 26, 2024 |
| Belle Prairie City | 3 | 3 | Aug 6, 2019 |
Questions about hail in Hamilton County
How often does it hail in Hamilton County, Illinois?
44 hail reports have been logged in Hamilton County since 1964. Over the 20 years 2006–2025 that averages 1.4 reports a year. That ranks #95 of 103 Illinois counties by number of reports.
When is hail season in Hamilton County?
Most reports come in April, March, May. April alone accounts for 36% of all reports.
What is the largest hail recorded in Hamilton County?
2.00 in (hen egg size) on July 7, 1964. 2% of reports here were 2 inches or larger.
When did it last hail in Hamilton County?
The most recent report in this data is from July 28, 2024 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Hamilton County had in the last five years?
4 separate days with hail reports since November 3, 2021, adding up to 5 reports. The most recent was July 28, 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.