The most recent reported hail day was 2025-05-16 -- 1 year ago, with nothing reported since. Washington County is hit in most years. The largest stone on record here is 4.5 inches, a softball and 4.5 times the National Weather Service's 1 inch severe criterion, reported on 2012-04-28 near Okawville.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Illinois. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-05-16, around Addieville. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Washington County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->NOAA's Storm Prediction Center has logged 18 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 44 separate reports between them, two or three on a typical one. 6 of those 17 years produced none at all. One year dominates the record: 2012 alone produced 4 of the 18 days. The last five years have run hotter than the long-run rate: 7 days since 2022, against 0.9 a year before that.
Roof-killing hail is routine here: 5 of the 18 days reached 2 inches or more, 28% of them, the last on 2025-05-16. Those big days do not follow the county's usual calendar: most of them fall in May, not March.
Across the whole of Illinois, see the Illinois hail map and history.
Reports cluster nearest Okawville -- 7 of the county's 18 hail days -- then Nashville (6), Addieville (4), New Minden (4) and Hoyleton (3). Beyond those, NOAA names Venedy, Du Bois and Richview on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Okawville | 7 | 4.50″ |
| Hoyleton | 3 | 2.75″ |
| Nashville | 3 | 1.25″ |
| Du Bois | 2 | 1.25″ |
| 3 NW Richview | 2 | 1.00″ |
The season runs March through July: 17 of the 18 hail days on record fall in those 5 months (94%). March is the single busiest month, with 6 of them (33%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in November, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| March | 6 |
| April | 4 |
| May | 3 |
| June | 1 |
| July | 3 |
| November | 1 |
That day put 3 reports on the map, the biggest 2 inches near Addieville. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-05-16 | 2.00″ | 3 |
| 2025-04-29 | 1.25″ | 1 |
| 2025-03-30 | 1.25″ | 3 |
| 2024-04-18 | 1.25″ | 2 |
| 2024-03-14 | 2.50″ | 7 |
| 2023-07-01 | 1.25″ | 1 |
| 2023-05-07 | 2.50″ | 2 |
| 2020-03-02 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4.5 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Clinton County (15 hail days), Perry County (17) and Jefferson County (18). Washington County sits in between.
Clinton County · Perry County · Jefferson County
Back to the Illinois hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Washington County, Illinois only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.