The most recent reported hail day was 2026-04-27, 95 days ago. Ralls County is hit in most years. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2023-03-31 near Rensselaer.
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 2026-04-27, around Hannibal. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Ralls 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 18 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 34 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: 2011 alone produced 6 of the 18 days. The last five years have been quieter than the long run: 3 days since 2022, against 1.2 a year before that.
Most hail here stays under 2 inches: only 1 of the 18 days on record passed it, 6%, the last on 2023-03-31. Those big days do not follow the county's usual calendar: most of them fall in March, not April. Golf-ball size is rarer still: 1.75 inches or more on 2 of the 18 days.
Across the whole of Missouri, see the Missouri hail map and history.
Reports cluster nearest Perry -- 5 of the county's 18 hail days -- then New London (4), Rensselaer (3), Spaulding (3) and Center (3). Beyond those, NOAA names The Landing and Hannibal on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Perry | 3 | 1.50″ |
| Center | 3 | 1.00″ |
| New London | 2 | 1.50″ |
| 4 E Rensselaer | 1 | 2.00″ |
| 4 S the Landing | 1 | 1.75″ |
The season runs March through June: 15 of the 18 hail days on record fall in those 4 months (83%). April is the single busiest month, with 5 of them (28%). That peak sits inside the window rather than at either end. Hail has also been reported in July, September and December, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 5 |
| May | 5 |
| June | 4 |
| July | 1 |
| September | 1 |
| December | 1 |
That day put 1 report on the map, the biggest 1 inch near Hannibal. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-27 | 1.00″ | 1 |
| 2024-07-15 | 1.25″ | 1 |
| 2023-03-31 | 2.00″ | 7 |
| 2019-06-01 | 1.00″ | 1 |
| 2019-04-07 | 1.75″ | 4 |
| 2018-06-14 | 1.00″ | 2 |
| 2017-06-14 | 1.00″ | 1 |
| 2016-05-11 | 1.50″ | 2 |
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 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: Marion County (21 hail days), Pike County (18) and Monroe County (19). Ralls County sits in between.
Marion County · Pike County · Monroe County
Back to the Missouri hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Ralls County, Missouri only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.