◆ GRASSRANGE CLARK ARP, MT HAIL HISTORY · FERGUS COUNTY
Grassrange Clark Arp, MT hail history & hail map
Grassrange Clark Arp, Montana has had 5 hail events in the past 5 years, with hail up to 1.50″ (Ping Pong Ball). Most recent: Aug 7, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
5Hail events in the past 5 years
1.50″Largest recorded hail · Ping Pong Ball
1.50″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Grassrange Clark Arp, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Grassrange Clark Arp
| Date | Peak hail | Sources |
|---|---|---|
| Aug 7, 2025 | 1.00″ Quarter | Radar 1.00″ · 3 ground reports (max 1.00″) |
| Jun 16, 2025 | 1.50″ Ping Pong Ball | 2 ground reports (max 1.50″) |
| Jun 15, 2025 | 1.25″ Half Dollar | 2 ground reports (max 1.25″) |
| May 27, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jul 5, 2022 | 1.25″ Half Dollar | Radar 1.25″ · 1 ground report (max 0.25″) |
More Montana hail history
All Montana cities & hail days →
Events count days with NOAA MRMS radar hail over Grassrange Clark Arp (47.050, -108.840) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.