Mercer County, North Dakota Hail Map & History
Mercer County was hit as recently as 2026-06-28, 78 days ago. Mercer County is hit in most years, and usually several times over. 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 2021-07-16 near Beulah.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in North Dakota. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-28, around Golden Valley. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Mercer 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 ->How often it hails in Mercer County
NOAA's Storm Prediction Center has logged 35 separate hail days here since 2010 -- 2.1 a year over 17 years of record. They carry 62 reports in total: most hail days here are logged from a single spot. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2016, with 4 hail days. The last five years track the long-run rate, with 9 days since 2022.
Most hail here stays under 2 inches: only 2 of the 35 days on record passed it, 6%, the last on 2021-07-16. Those big days do not follow the county's usual calendar: most of them fall in June, not July. 12 of the 35 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of North Dakota, see the North Dakota hail map and history.
Hardest-hit places in Mercer County
Reports cluster nearest Beulah -- 17 of the county's 35 hail days -- then Hazen (8), Stanton (4), Hebron (3) and Dodge (2). That one town is named on 49% of them. Beyond those, NOAA names Pick City and Zap on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Hazen | 6 | 1.75″ |
| Beulah | 5 | 1.75″ |
| 2 Nw Beulah | 3 | 1.75″ |
| 10 N Beulah | 2 | 2.00″ |
| 15 S Beulah | 2 | 1.75″ |
When it hails in Mercer County
The season runs June through August: 29 of the 35 hail days on record fall in those 3 months (83%). July is the single busiest month, with 13 of them (37%). That peak sits inside the window rather than at either end. Hail has also been reported in May and September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 3 |
| June | 9 |
| July | 13 |
| August | 7 |
| September | 3 |
Recent Mercer County hail days
That day put 1 report on the map, the biggest 1.25 inches near Golden Valley. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-28 | 1.25″ | 1 |
| 2026-06-09 | 1.50″ | 4 |
| 2024-09-15 | 1.75″ | 3 |
| 2024-07-14 | 1.50″ | 2 |
| 2024-07-12 | 1.00″ | 1 |
| 2023-08-01 | 1.75″ | 4 |
| 2023-05-27 | 1.50″ | 1 |
| 2023-05-09 | 1.75″ | 2 |
How to read the Mercer County map
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.
Nearby counties
The nearest counties with a page of their own: Oliver County (24 hail days), McLean County (44) and Dunn County (41). Mercer County sits in between.
Oliver County · McLean County · Dunn County
Back to the North Dakota hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Mercer County, North Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.