465
Recorded events
53
Counties affected
0
Direct deaths
$49K
Property damage
Montana heavy rain history: 465 recorded events across 53 counties between 1996 and 2025.
Decade by decade
Montana heavy rain history by decade
The 2010s are the busiest decade on record with 199 reported heavy rain events across Montana. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.
County ranking
Counties with the most heavy rain events in Montana
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Cascade County | 37 | 0 | $0 | 2013–2023 |
| #2 | Glacier County | 32 | 0 | $0 | 2013–2022 |
| #3 | Lewis and Clark County | 29 | 0 | $0 | 2019–2022 |
| #4 | Valley County | 23 | 0 | $2K | 2005–2023 |
| #5 | Fergus County | 21 | 0 | $0 | 2004–2022 |
| #6 | Beaverhead County | 17 | 0 | $0 | 2014–2020 |
| #7 | Phillips County | 14 | 0 | $0 | 2005–2025 |
| #8 | Missoula County | 12 | 0 | $5K | 2004–2025 |
| #9 | Flathead County | 12 | 0 | $0 | 2004–2025 |
| #10 | Chouteau County | 12 | 0 | $0 | 2006–2022 |
| #11 | Carbon County | 12 | 0 | $0 | 2001–2007 |
| #12 | Hill County | 11 | 0 | $0 | 2007–2022 |
| #13 | Daniels County | 10 | 0 | $0 | 2006–2023 |
| #14 | Dawson County | 10 | 0 | $0 | 2007–2019 |
| #15 | Roosevelt County | 9 | 0 | $0 | 2006–2021 |
| #16 | Ravalli County | 9 | 0 | $0 | 2002–2025 |
| #17 | Meagher County | 9 | 0 | $0 | 2014–2022 |
| #18 | Judith Basin County | 9 | 0 | $0 | 2007–2022 |
| #19 | Richland County | 9 | 0 | $0 | 2009–2019 |
| #20 | Prairie County | 8 | 0 | $0 | 2005–2021 |
| #21 | Jefferson County | 8 | 0 | $0 | 2014–2022 |
| #22 | Lincoln County | 8 | 0 | $20K | 2011–2025 |
| #23 | Garfield County | 7 | 0 | $0 | 2009–2020 |
| #24 | Custer County | 7 | 0 | $0 | 2005–2016 |
| #25 | McCone County | 7 | 0 | $0 | 2008–2023 |