Hail history for Williamson County, Illinois
Every NOAA hail report filed in Williamson County since 1971, with preliminary National Weather Service reports to November 3, 2026.
Readout · Williamson County
- Last hail
- May 20, 2025
- 0.88 in, nickel size
- Hail days, last 5 years
- 13
- since Nov 3, 2021 · 22 reports
- Largest ever
- 3.00 in
- teacup · Jun 30, 2023
120 reports on 89 days since 1971 · #37 of 103 Illinois counties
Hail map · Williamson 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 Williamson County
The latest hail report in Williamson County is from May 20, 2025, 0.88 in (nickel size). Since November 3, 2021 there have been 13 separate hail days; the biggest stones in that time were 3.00 in on June 30, 2023.
Over the 20 years 2006–2025, Williamson County logged 83 reports on 60 hail days, about 4.2 reports a year. That is 60% more than the median Illinois county (2.6 a year) and ranks #37 of 103 Illinois counties for all-time reports. Williamson County holds 1% of all 12,418 hail reports in Illinois.
8% 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 3.00 in (teacup) on June 30, 2023 near 1 E Crainville.
Reports were up 24% in 2016–2025 (46) compared with 2006–2015 (37). The busiest year was 2025, with 9 reports on 4 days. Hail here peaks in May (30% of reports); 66% fall between April and June.
Reports a year 2006–2025 average
- Williamson County 4.2
- Median Illinois county 2.6
Hail days 2006–2025
- Williamson County 60
- Median Illinois county 34
Share 2 in or larger of sized reports
- Williamson County 8%
- Median Illinois county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 2 | 7 | 9 | ||||||||||
| 2024 | 1 | 4 | 5 | ||||||||||
| 2023 | 2 | 1 | 4 | 1 | 8 | ||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 4 | 1 | 5 | ||||||||||
| 2019 | 1 | 1 | 2 | ||||||||||
| 2018 | 2 | 2 | 4 | ||||||||||
| 2017 | 1 | 1 | 2 | 1 | 1 | 6 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 20, 2025 | 1 | 0.88 in | — |
| May 16, 2025 | 3 | 1.75 in | — |
| May 1, 2025 | 3 | 1.00 in | — |
| Mar 30, 2025 | 2 | 1.50 in | — |
| May 26, 2024 | 1 | 2.00 in | — |
| May 23, 2024 | 1 | 0.75 in | — |
| May 8, 2024 | 2 | 1.75 in | — |
| Apr 2, 2024 | 1 | 1.00 in | — |
| Jul 2, 2023 | 1 | 1.25 in | — |
| Jun 30, 2023 | 3 | 3.00 in | — |
| Jun 29, 2023 | 1 | 1.10 in | — |
| May 7, 2023 | 1 | 0.75 in | — |
| Apr 15, 2023 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 30, 2023 | 3.00 inteacup | 1 E Crainville | $10.0 million | 16:19 local · NCEI |
| Feb 28, 2017 | 3.00 inteacup | Johnston City | — | 22:56 local · NCEI |
| Jun 30, 2023 | 2.75 inbaseball | Johnston City | — | 16:35 local · NCEI |
| Jun 30, 2023 | 2.75 inbaseball | Whiteash | — | 16:31 local · NCEI |
| May 5, 1999 | 2.75 inbaseball | Hudgens | $50K | 13:35 local · NCEI |
Size of every report
- Under 1 in 60 50%
- 1–2 in 51 43%
- 2 in + 9 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 20, 2025 | 0.88 innickel | 0.32 W Johnston City | 18:15 local · NCEI |
| May 16, 2025 | 0.88 innickel | 0.69 S Marion | 18:03 local · NCEI |
| May 16, 2025 | 1.25 inhalf dollar | 0.98 ESE Crainville | 17:12 local · NCEI |
| May 16, 2025 | 1.75 ingolf ball | Cambria | 16:59 local · NCEI |
| May 1, 2025 | 1.00 inquarter | 0.5 SSW (Mwa)marion Wllmson | 17:44 local · NCEI |
| May 1, 2025 | 0.88 innickel | 0.34 SSE Carterville | 17:36 local · NCEI |
| May 1, 2025 | 1.00 inquarter | 0.65 NNW Carterville | 17:27 local · NCEI |
| Mar 30, 2025 | 0.88 innickel | Blairsville | 16:40 local · NCEI |
| Mar 30, 2025 | 1.50 inping pong ball | 0.88 NW Bush | 16:38 local · NCEI |
| May 26, 2024 | 2.00 inhen egg | 0.74 ENE Saraville | 18:02 local · NCEI |
| May 23, 2024 | 0.75 inpenny | 0.88 NW Marion | 04:10 local · NCEI |
| May 8, 2024 | 1.00 inquarter | 1.27 ESE Clifford | 14:33 local · NCEI |
Cities and towns in Williamson County
| Place | Reports | Largest |
|---|---|---|
| Marion | 36 | 2.00 in |
| Herrin | 19 | 1.75 in |
| Carterville | 11 | 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 |
|---|---|---|---|
| Hurst | 8 | 7 | Mar 30, 2025 |
| Johnston City | 7 | 7 | May 20, 2025 |
| Cambria | 5 | 5 | May 16, 2025 |
| Creal Springs | 5 | 4 | May 31, 2018 |
| Crainville | 4 | 4 | May 16, 2025 |
| Crab Orchard | 3 | 3 | May 26, 2024 |
| Freeman Spur | 2 | 1 | Mar 15, 2012 |
| Pittsburg | 2 | 2 | Nov 10, 2006 |
| Spillertown | 2 | 2 | Sep 4, 2017 |
| Blairsville | 1 | 1 | Mar 30, 2025 |
| Bush | 1 | 1 | Apr 12, 2005 |
| Colp | 1 | 1 | May 8, 2009 |
| Whiteash | 1 | 1 | Jun 30, 2023 |
Questions about hail in Williamson County
How often does it hail in Williamson County, Illinois?
120 hail reports have been logged in Williamson County since 1971. Over the 20 years 2006–2025 that averages 4.2 reports a year. That ranks #37 of 103 Illinois counties by number of reports.
When is hail season in Williamson County?
Most reports come in May, April, March. May alone accounts for 30% of all reports.
What is the largest hail recorded in Williamson County?
3.00 in (teacup size) on June 30, 2023 near 1 E Crainville. 8% of reports here were 2 inches or larger.
When did it last hail in Williamson County?
The most recent report in this data is from May 20, 2025 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Williamson County had in the last five years?
13 separate days with hail reports since November 3, 2021, adding up to 22 reports. The most recent was May 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.