120
Recorded events
0
Direct deaths
0
Direct injuries
$12.4M
Property damage
Hail in Williamson County, Illinois: 120 recorded events between 1971 and 2025. The strongest on record measured 3. That places the county #1,204 nationally and #35 statewide for this hazard.
Decade by decade
Hail in Williamson County, Illinois: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Williamson County is the 2000s, when 38 of the county's 120 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Williamson County archive, hail makes up 32.0% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,204 for this hazard and #35 within Illinois, putting it in the 61.2 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for hail in Williamson County with 34 recorded events, while Dec is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| May 21, 2025 | JOHNSTON CITY | 0.88 | $0 |
| May 17, 2025 | MARION | 0.88 | $0 |
| May 16, 2025 | CRAINVILLE | 1.25 | $0 |
| May 16, 2025 | CAMBRIA | 1.75 | $0 |
| May 1, 2025 | (MWA)MARION WLLMSON | 1 | $0 |
| May 1, 2025 | CARTERVILLE | 0.88 | $0 |
| May 1, 2025 | CARTERVILLE | 1 | $0 |
| Mar 30, 2025 | BLAIRSVILLE | 0.88 | $0 |
| Mar 30, 2025 | BUSH | 1.5 | $0 |
| May 27, 2024 | SARAVILLE | 2 | $0 |
Other hazards here
More from Williamson County
- Thunderstorm Wind 137
- Flash Flood 40
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Giant hail occurred in a swath of Williamson County along Illinois Route 13. The swath of large hail began near the Marion/Williamson County airport, just east and southeast of Crainville. Hail slightly larger than baseballs pounded the area in the immediate vicinity of the Marion/Williamson County Regional Airport. Hail damage was reported to planes at the airport, including broken windows. Numerous vehicles were damaged by hail from quarter size to golf-ball size. Hail damage occurred at the baseball stadium near Interstate 57 at Route 13. There was major damage to multiple vehicles at a car dealership on Route 13 between the Marion airport and the downtown Marion area. The large hail swath continued into the north side of the city of Marion, where hail the size of golf balls occurred.
A supercell thunderstorm entered southern Williamson County near the Lake of Egypt. Hail up to baseball size occurred on the north side of Lake of Egypt, near Hudgens. In the city of Marion, hail up to the size of quarters fell.
The severe thunderstorm that produced a destructive swath of golf ball to baseball size hail in Marion continued northeast across northern Williamson County. Baseball size hail accompanied the storm as it tracked east-northeast across north central and northeast parts of the county. Vehicles were dented and windshields were cracked.
Quick answers
Frequently asked
How many hail events are on record in Williamson County, Illinois?
120 hail events are recorded in Williamson County between 1971 and 2025, causing 0 direct deaths.
What is the strongest hail recorded in Williamson County?
The strongest hail on record in Williamson County measured 3.
Where does the hail data for Williamson County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Hail in Williamson County, Illinois.” Severe Weather History. severeweatherhistory.com/county/illinois/williamson-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.