HailHistory › Hail by county › Montana
Montana · 56 counties
Hail history in Montana
Montana has 8,333 recorded hail events in the NOAA Storm Events Database since 1950 — 5,589 of them 1″ or larger. The largest on record: 6.0″ (grapefruit) in Powder River County on June 3, 1971.
When it hails in Montana
All recorded Montana events by month, 1950–present · data through April 2026.
Every Montana county, ranked by recorded hail
| County | Events | ≥1″ | Largest | Most recent |
|---|---|---|---|---|
| Yellowstone County | 506 | 344 | 3.5″ | 2025 |
| Valley County | 470 | 311 | 4.5″ | 2025 |
| Powder River County | 373 | 249 | 6.0″ | 2025 |
| Rosebud County | 333 | 207 | 6.0″ | 2025 |
| Garfield County | 291 | 195 | 3.0″ | 2025 |
| Carter County | 290 | 195 | 4.5″ | 2025 |
| Phillips County | 276 | 163 | 3.0″ | 2025 |
| Cascade County | 253 | 181 | 3.0″ | 2025 |
| Fergus County | 251 | 185 | 4.5″ | 2025 |
| Big Horn County | 247 | 149 | 4.0″ | 2025 |
| Roosevelt County | 247 | 160 | 3.5″ | 2025 |
| Dawson County | 243 | 156 | 4.0″ | 2025 |
| Custer County | 239 | 162 | 4.5″ | 2025 |
| McCone County | 237 | 167 | 4.5″ | 2025 |
| Musselshell County | 230 | 158 | 4.5″ | 2025 |
| Richland County | 214 | 148 | 2.5″ | 2025 |
| Sheridan County | 197 | 114 | 3.0″ | 2025 |
| Prairie County | 185 | 114 | 4.5″ | 2025 |
| Stillwater County | 185 | 134 | 2.75″ | 2025 |
| Fallon County | 184 | 133 | 4.0″ | 2025 |
| Daniels County | 161 | 106 | 4.0″ | 2025 |
| Chouteau County | 152 | 107 | 2.75″ | 2025 |
| Judith Basin County | 149 | 104 | 4.0″ | 2025 |
| Sweet Grass County | 130 | 84 | 2.5″ | 2025 |
| Wibaux County | 126 | 92 | 3.0″ | 2023 |
| Golden Valley County | 123 | 77 | 2.75″ | 2025 |
| Carbon County | 117 | 67 | 4.0″ | 2025 |
| Missoula County | 117 | 76 | 2.5″ | 2025 |
| Lewis and Clark County | 115 | 84 | 3.0″ | 2024 |
| Petroleum County | 115 | 76 | 3.5″ | 2025 |
| Hill County | 112 | 78 | 3.5″ | 2025 |
| Wheatland County | 107 | 68 | 2.75″ | 2025 |
| Blaine County | 102 | 73 | 4.0″ | 2025 |
| Teton County | 102 | 72 | 3.0″ | 2024 |
| Flathead County | 100 | 65 | 2.75″ | 2025 |
| Gallatin County | 94 | 71 | 2.75″ | 2024 |
| Treasure County | 87 | 59 | 2.75″ | 2024 |
| Ravalli County | 85 | 57 | 2.75″ | 2022 |
| Pondera County | 76 | 60 | 4.5″ | 2024 |
| Glacier County | 75 | 66 | 1.75″ | 2025 |
| Powell County | 65 | 34 | 2.0″ | 2023 |
| Park County | 58 | 31 | 1.75″ | 2025 |
| Toole County | 58 | 44 | 2.75″ | 2025 |
| Jefferson County | 56 | 44 | 2.0″ | 2025 |
| Beaverhead County | 53 | 33 | 2.75″ | 2024 |
| Liberty County | 52 | 34 | 3.0″ | 2022 |
| Lake County | 48 | 31 | 2.0″ | 2024 |
| Meagher County | 45 | 36 | 2.5″ | 2024 |
| Silver Bow County | 43 | 31 | 2.5″ | 2019 |
| Granite County | 31 | 18 | 2.0″ | 2022 |
| Madison County | 29 | 18 | 1.75″ | 2024 |
| Broadwater County | 27 | 20 | 2.0″ | 2025 |
| Sanders County | 23 | 14 | 1.75″ | 2025 |
| Deer Lodge County | 21 | 14 | 1.75″ | 2023 |
| Lincoln County | 14 | 11 | 3.0″ | 2021 |
| Mineral County | 14 | 9 | 2.0″ | 2019 |
Questions about hail in Montana
How often does it hail in Montana?
The NOAA Storm Events Database records 8,333 hail events for Montana since 1950, 5,589 of them 1″ (quarter size) or larger. Recorded frequency varies sharply by county — the table on this page ranks all 56.
What is the largest hail ever recorded in Montana?
6.0″ (grapefruit), recorded in Powder River County on June 3, 1971. See it at true size on the actual-size hail chart.
When is hail season in Montana?
Recorded events peak in July. The by-month chart on this page shows the full seasonal shape — and each county page carries its own, since timing shifts across the state.
How do I check hail history for my address in Montana?
Storm Events records events at the county level, so pick your county below or use the ZIP lookup. For "did it hail on this date" claim questions, the date lookup searches every recorded Montana event.
Source: NOAA/NCEI Storm Events Database, public domain. Each county page shows the full event timeline, month profile, and storm-report narratives.