The most recent reported hail day was 2024-06-25 -- 2 years ago, with nothing reported since. Lewis County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2024-06-13 near La Belle.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Missouri. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2024-06-25, around Monticello. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Lewis County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 28 separate hail days here since 2010 -- 1.6 a year over 17 years of record. Those days carry 64 separate reports between them, two or three on a typical one. 3 of those 17 years produced none at all. The busiest single year was 2019, with 4 hail days. The last five years track the long-run rate, with 7 days since 2022.
3 of the 28 days reached 2 inches or more -- 11%, or about one hail day in 9, the last on 2024-06-25. Those big days do not follow the county's usual calendar: most of them fall in June, not May. 12 of the 28 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Missouri, see the Missouri hail map and history.
Reports cluster nearest La Grange -- 9 of the county's 28 hail days -- then La Belle (8), Monticello (6), Ewing (6) and Lewistown (5). Beyond those, NOAA names Canton, Maywood and Steffenville on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| La Grange | 9 | 1.75″ |
| La Belle | 7 | 1.50″ |
| Maywood | 4 | 1.25″ |
| Lewistown | 3 | 2.50″ |
| Canton | 2 | 2.00″ |
The season runs March through July: 24 of the 28 hail days on record fall in those 5 months (86%). May is the single busiest month, with 8 of them (29%). That peak sits inside the window rather than at either end. Hail has also been reported in August, September and October, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 6 |
| May | 8 |
| June | 5 |
| July | 2 |
| August | 1 |
| September | 2 |
| October | 1 |
That day put 2 reports on the map, the biggest 2 inches near Monticello. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-06-25 | 2.00″ | 2 |
| 2024-06-13 | 2.75″ | 7 |
| 2023-04-20 | 1.50″ | 2 |
| 2023-04-04 | 2.50″ | 6 |
| 2022-09-18 | 1.50″ | 1 |
| 2022-08-29 | 1.25″ | 1 |
| 2022-04-05 | 1.00″ | 2 |
| 2021-07-09 | 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 2.75 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, over the state line included: Clark County (22 hail days), Marion County (21), Scotland County (20) and Adams County, Illinois (40). Lewis County sits in between.
Clark County · Marion County · Scotland County · Adams County, Illinois
Back to the Missouri hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Lewis County, Missouri only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.