The most recent reported hail day was 2025-07-17, 379 days ago. Phillips County is hit in most years, and usually several times over. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2021-06-09 near Zortman.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Montana. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-07-17, around Zortman. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Phillips 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 36 separate hail days here since 2010 -- 2.1 a year over 17 years of record. Those days carry 80 separate reports between them, two or three on a typical one. 2 of those 17 years produced none at all. The busiest single year was 2010, with 6 hail days. The last five years have been quieter than the long run: 6 days since 2022, against 2.5 a year before that.
5 of the 36 days reached 2 inches or more -- 14%, or about one hail day in 7, the last on 2022-07-06. They land in the same month as everything else, June. 13 of the 36 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Montana, see the Montana hail map and history.
Reports cluster nearest Zortman -- 7 of the county's 36 hail days -- then Fourchette (6), Malta (6), Saco (6) and Dodson (4). Beyond those, NOAA names Whitewater, Landusky, Sun Prairie, Phillips, Sleeping Buffalo, Content, Chapman and Frenchman Reservoir on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Zortman | 2 | 2.75″ |
| 7 N Fourchette | 2 | 1.75″ |
| 7 W Landusky | 2 | 1.75″ |
| 8 N Fourchette | 2 | 1.75″ |
| Content | 2 | 1.75″ |
The season runs June through August: 31 of the 36 hail days on record fall in those 3 months (86%). June is the single busiest month, with 13 of them (36%). That peak opens the window: the season starts at its worst and eases off from there. 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 | 13 |
| July | 13 |
| August | 5 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Zortman. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-07-17 | 1.00″ | 1 |
| 2024-07-13 | 1.75″ | 1 |
| 2023-09-08 | 1.00″ | 1 |
| 2023-06-06 | 1.00″ | 1 |
| 2022-07-06 | 2.75″ | 7 |
| 2022-07-05 | 1.75″ | 2 |
| 2021-07-08 | 1.50″ | 6 |
| 2021-06-09 | 3.00″ | 7 |
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 3 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: Blaine County (20 hail days), Valley County (63) and Garfield County (48). Phillips County sits in between.
Blaine County · Valley County · Garfield County
Back to the Montana hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Phillips County, Montana only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.