Montana hail history
Radar has detected 573 major hail days over Montana since 2011. The largest was 4" hail (baseball size or larger) near Lodge Grass on June 22, 2026. Data comes from NOAA's Severe Weather Data Inventory: radar hail signatures, not ground reports.
Data last updated: July 28, 2026
Most recent major hail days
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Largest hail on record here (radar-estimated)
Montana cities with hail history
Ordered by number of major hail days since 2011.
Hail days by year
2011
47
2012
34
2013
42
2014
33
2015
30
2016
51
2017
23
2018
40
2019
48
2020
27
2021
18
2022
33
2023
44
2024
39
2025
47
2026
17