The most recent reported hail day was 2025-05-16 -- 1 year ago, with nothing reported since. Iron County is hit in about half the years on record. 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 2024-05-26 near Viburnum.
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 2025-05-16, around Annapolis. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Iron 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 33 separate reports between them, two or three on a typical one. 7 of those 17 years produced none at all. One year dominates the record: 2024 alone produced 4 of the 18 days. The last five years have run hotter than the long-run rate: 9 days since 2022, against 0.8 a year before that.
3 of the 18 days reached 2 inches or more -- 17%, or about one hail day in 6, the last on 2024-05-26. They land in the same month as everything else, May. 6 of the 18 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 Annapolis -- 6 of the county's 18 hail days -- then Viburnum (4), Sabula (3), Ironton (3) and Bixby (2). Beyond those, NOAA names Pilot Knob on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Annapolis | 6 | 1.75″ |
| Viburnum | 4 | 2.00″ |
| Sabula | 2 | 2.00″ |
| 2 Wsw Bixby | 2 | 1.00″ |
| 1 N Viburnum | 1 | 2.00″ |
The season runs March through June: 15 of the 18 hail days on record fall in those 4 months (83%). May is the single busiest month, with 8 of them (44%). That peak sits inside the window rather than at either end. Hail has also been reported in July, August and November, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 3 |
| May | 8 |
| June | 1 |
| July | 1 |
| August | 1 |
| November | 1 |
That day put 1 report on the map, the biggest 1.75 inches near Annapolis. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-05-16 | 1.75″ | 1 |
| 2024-05-26 | 2.00″ | 2 |
| 2024-05-21 | 1.00″ | 1 |
| 2024-05-08 | 1.25″ | 2 |
| 2024-04-18 | 1.00″ | 1 |
| 2023-05-08 | 2.00″ | 4 |
| 2023-03-23 | 1.00″ | 1 |
| 2022-08-20 | 1.75″ | 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 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: Reynolds County (17 hail days), St. Francois County (28) and Washington County (29). Iron County sits in between.
Reynolds County · St. Francois County · Washington 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, Iron County, Missouri only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.