Humboldt County was hit as recently as 2026-05-15, 77 days ago. Humboldt County is hit in most years. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2014-06-16 near Humboldt.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-05-15, around Humboldt. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Humboldt 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 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. Those days carry 46 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. The busiest single year was 2025, with 3 hail days. The last five years track the long-run rate, with 8 days since 2022.
4 of the 22 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2023-08-11. Those big days do not follow the county's usual calendar: most of them fall in March, not May.
Across the whole of Iowa, see the Iowa hail map and history.
Reports cluster nearest Humboldt -- 7 of the county's 22 hail days -- then Dakota City (4), Rutland (3), Bode (3) and Thor (2). Beyond those, NOAA names Goldfield, Bradgate and Livermore on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Humboldt | 3 | 2.00″ |
| Thor | 2 | 2.50″ |
| 3 Wnw Goldfield | 2 | 1.75″ |
| 4 W Humboldt | 2 | 1.75″ |
| 4 S Humboldt | 2 | 1.50″ |
The season runs April through August: 20 of the 22 hail days on record fall in those 5 months (91%). May is the single busiest month, with 6 of them (27%). That peak sits inside the window rather than at either end. Hail has also been reported in March and September, 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 | 6 |
| June | 3 |
| July | 3 |
| August | 3 |
| September | 1 |
That day put 1 report on the map, the biggest 1.5 inches near Humboldt. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-05-15 | 1.50″ | 1 |
| 2025-09-22 | 1.00″ | 1 |
| 2025-08-15 | 1.00″ | 1 |
| 2025-04-17 | 1.00″ | 1 |
| 2024-07-06 | 1.00″ | 1 |
| 2023-08-11 | 2.00″ | 2 |
| 2022-05-30 | 1.00″ | 1 |
| 2022-04-12 | 1.00″ | 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 4 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: Webster County (38 hail days), Wright County (14) and Pocahontas County (22). Humboldt County sits in between.
Webster County · Wright County · Pocahontas County
Back to the Iowa hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Humboldt County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.