Hail history in Montana
54 days with hail of 1 inch or larger reported in Montana between Jan 1, 2025 and Oct 26, 2026, the largest 3.50 in (tea cup). Jul had the most hail days.
Find the hail date for your address
Insurers ask for a date of loss. List every report near your address for free, then order a certified satellite report for that date.
Find hail dates for my addressWhen hail falls in Montana
The biggest hail days
| Storm day | Reports | Largest hail | Where |
|---|---|---|---|
| Jun 15, 2025 | 33 | 3.50 in (tea cup) | 1 SSE Petrolia Lake, Petroleum County |
| Aug 7, 2025 | 31 | 2.00 in (hen egg) | Forest Park, Dawson County |
| Sep 6, 2026 | 25 | 3.25 in (tea cup) | 14 SW Landusky, Phillips County |
| Jun 13, 2025 | 18 | 2.75 in (baseball) | 1 NNW Pryor, Big Horn County |
| Jun 27, 2026 | 16 | 2.00 in (hen egg) | Belle Creek, Carter County |
| Jul 28, 2025 | 14 | 2.50 in (tennis ball) | 6 WSW Forestgrove, Fergus County |
| Jul 16, 2026 | 9 | 1.75 in (golf ball) | 7 S Utica, Judith Basin County |
| Jun 20, 2025 | 8 | 2.50 in (tennis ball) | Powderville, Powder River County |
| Jun 14, 2025 | 8 | 2.00 in (hen egg) | Hobson, Judith Basin County |
| Jun 7, 2026 | 7 | 3.00 in (tea cup) | 16 ESE Powderville, Carter County |
Hail by county in Montana
Counties with five or more hail days have their own page with every storm date.
| County | Hail days | Reports | Largest hail |
|---|---|---|---|
| Powder River County | 9 | 18 | 2.50 in (tennis ball) |
| Fergus County | 8 | 24 | 3.00 in (tea cup) |
| Carter County | 8 | 16 | 3.00 in (tea cup) |
| Yellowstone County | 7 | 33 | 2.75 in (baseball) |
| Judith Basin County | 7 | 20 | 2.50 in (tennis ball) |
| Fallon County | 6 | 9 | 3.00 in (tea cup) |
| Cascade County | 5 | 17 | 1.50 in (ping pong ball) |
| Big Horn County | 5 | 12 | 2.75 in (baseball) |
| Carbon County | 5 | 9 | 2.00 in (hen egg) |
| Custer County | 4 | 8 | 2.00 in (hen egg) |
| McCone County | 4 | 8 | 2.00 in (hen egg) |
| Musselshell County | 4 | 7 | 1.75 in (golf ball) |
| Valley County | 4 | 5 | 2.75 in (baseball) |
| Petroleum County | 3 | 8 | 3.50 in (tea cup) |
| Dawson County | 3 | 8 | 2.00 in (hen egg) |
| Wheatland County | 3 | 6 | 2.00 in (hen egg) |
| Prairie County | 3 | 6 | 1.75 in (golf ball) |
| Daniels County | 3 | 5 | 1.50 in (ping pong ball) |
| Flathead County | 3 | 4 | 1.00 in (quarter) |
| Golden Valley County | 3 | 4 | 2.00 in (hen egg) |
| Richland County | 3 | 4 | 2.00 in (hen egg) |
| Roosevelt County | 3 | 3 | 1.00 in (quarter) |
| Stillwater County | 2 | 5 | 1.75 in (golf ball) |
| Phillips County | 2 | 4 | 3.25 in (tea cup) |
| Lewis and Clark County | 2 | 4 | 1.00 in (quarter) |
| Beaverhead County | 2 | 4 | 1.75 in (golf ball) |
| Garfield County | 2 | 3 | 2.00 in (hen egg) |
| Jefferson County | 2 | 3 | 1.00 in (quarter) |
| Hill County | 2 | 3 | 1.25 in (half dollar) |
| Sanders County | 2 | 2 | 1.50 in (ping pong ball) |
| Sweet Grass County | 2 | 2 | 1.25 in (half dollar) |
| Missoula County | 2 | 2 | 1.75 in (golf ball) |
| Teton County | 2 | 2 | 1.00 in (quarter) |
| Deer Lodge County | 2 | 2 | 1.50 in (ping pong ball) |
| Chouteau County | 1 | 4 | 2.50 in (tennis ball) |
| Glacier County | 1 | 2 | 1.25 in (half dollar) |
| Sheridan County | 1 | 2 | 1.50 in (ping pong ball) |
| Rosebud County | 1 | 1 | 1.00 in (quarter) |
| Blaine County | 1 | 1 | 1.75 in (golf ball) |
| Toole County | 1 | 1 | 1.00 in (quarter) |
| Broadwater County | 1 | 1 | 1.25 in (half dollar) |
| Park County | 1 | 1 | 1.25 in (half dollar) |
| Liberty County | 1 | 1 | 1.50 in (ping pong ball) |
| Wibaux County | 1 | 1 | 1.00 in (quarter) |
| Pondera County | 1 | 1 | 1.00 in (quarter) |
| Madison County | 1 | 1 | 1.00 in (quarter) |
| Powell County | 1 | 1 | 1.75 in (golf ball) |
Other states
Source and method
NOAA Storm Prediction Center preliminary local storm reports of hail 1 inch or larger, Jan 1, 2025 to Oct 26, 2026 (updated Oct 27, 2026). Dates are SPC storm days, which run from 12:00 UTC to 12:00 UTC (about 7 a.m. to 7 a.m. Central), so a late-night storm appears on the day it started. Reports come from spotters, the public and NWS offices: they can be revised, and a storm nobody reported is missing. SPC storm reports.
A Skybridge report goes further for one address and date: GOES satellite cloud-top and lightning data, NOAA MRMS radar hail size and these storm reports within 50 km, in one document reviewed by a person, with a code anyone can verify.