Counties in Montana by annual precipitation

Flathead County had the highest annual precipitation of 56 counties in 2024, at 33.96 inches. Richland County had the lowest, at 10.83 inches. The median was 14.69 inches and the figure for Montana was 17.04 inches. Source: NOAA National Centers for Environmental Information.

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Highest33.96Flathead County
Lowest10.83Richland County
Median14.6956 counties
Montana17.04History

Map of counties, 2024

Beaverhead County: 15.34 inchesBig Horn County: 14.01 inchesBlaine County: 17.14 inchesBroadwater County: 13.43 inchesCarbon County: 14.55 inchesCarter County: 11.77 inchesCascade County: 16.11 inchesChouteau County: 16.91 inchesCuster County: 13.14 inchesDaniels County: 13.46 inchesDawson County: 11.52 inchesDeer Lodge County: 17.03 inchesFallon County: 11.4 inchesFergus County: 17.2 inchesFlathead County: 33.96 inchesGallatin County: 23.35 inchesGarfield County: 13.14 inchesGlacier County: 20.71 inchesGolden Valley County: 13.85 inchesGranite County: 18.31 inchesHill County: 15.02 inchesJefferson County: 12.61 inchesJudith Basin County: 17.72 inchesLake County: 24.4 inchesLewis and Clark County: 18.27 inchesLiberty County: 13.87 inchesLincoln County: 29.45 inchesMcCone County: 11.98 inchesMadison County: 20.69 inchesMeagher County: 18.89 inchesMineral County: 33.19 inchesMissoula County: 24.17 inchesMusselshell County: 14.57 inchesPark County: 24.85 inchesPetroleum County: 12.6 inchesPhillips County: 13.02 inchesPondera County: 14.46 inchesPowder River County: 12.51 inchesPowell County: 19.1 inchesPrairie County: 11.37 inchesRavalli County: 24.84 inchesRichland County: 10.83 inchesRoosevelt County: 11.55 inchesRosebud County: 14.81 inchesSanders County: 28.26 inchesSheridan County: 11.8 inchesSilver Bow County: 11.95 inchesStillwater County: 16.34 inchesSweet Grass County: 17.6 inchesTeton County: 16.23 inchesToole County: 12.28 inchesTreasure County: 15.38 inchesValley County: 12.19 inchesWheatland County: 13.52 inchesWibaux County: 11.61 inchesYellowstone County: 14.03 inches
  • Under 12
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  • 13 to 15
  • 15 to 17
  • 17 to 21
  • 21 and over
inches, 2024. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Flathead County: 33.96 inchesFlathead County33.96Mineral County: 33.19 inchesMineral County33.19Lincoln County: 29.45 inchesLincoln County29.45Sanders County: 28.26 inchesSanders County28.26Park County: 24.85 inchesPark County24.85Ravalli County: 24.84 inchesRavalli County24.84Lake County: 24.4 inchesLake County24.4Missoula County: 24.17 inchesMissoula County24.17Gallatin County: 23.35 inchesGallatin County23.35Glacier County: 20.71 inchesGlacier County20.71Madison County: 20.69 inchesMadison County20.69Powell County: 19.1 inchesPowell County19.1Meagher County: 18.89 inchesMeagher County18.89Granite County: 18.31 inchesGranite County18.31Lewis and Clark County: 18.27 inchesLewis and Clark County18.27Judith Basin County: 17.72 inchesJudith Basin County17.72Sweet Grass County: 17.6 inchesSweet Grass County17.6Fergus County: 17.2 inchesFergus County17.2Blaine County: 17.14 inchesBlaine County17.14Deer Lodge County: 17.03 inchesDeer Lodge County17.03Chouteau County: 16.91 inchesChouteau County16.91Stillwater County: 16.34 inchesStillwater County16.34Teton County: 16.23 inchesTeton County16.23Cascade County: 16.11 inchesCascade County16.11Treasure County: 15.38 inchesTreasure County15.38Beaverhead County: 15.34 inchesBeaverhead County15.34Hill County: 15.02 inchesHill County15.02Rosebud County: 14.81 inchesRosebud County14.81Musselshell County: 14.57 inchesMusselshell County14.57Carbon County: 14.55 inchesCarbon County14.55Pondera County: 14.46 inchesPondera County14.46Yellowstone County: 14.03 inchesYellowstone County14.03Big Horn County: 14.01 inchesBig Horn County14.01Liberty County: 13.87 inchesLiberty County13.87Golden Valley County: 13.85 inchesGolden Valley County13.85Wheatland County: 13.52 inchesWheatland County13.52Daniels County: 13.46 inchesDaniels County13.46Broadwater County: 13.43 inchesBroadwater County13.43Custer County: 13.14 inchesCuster County13.14Garfield County: 13.14 inchesGarfield County13.14Phillips County: 13.02 inchesPhillips County13.02Jefferson County: 12.61 inchesJefferson County12.61Petroleum County: 12.6 inchesPetroleum County12.6Powder River County: 12.51 inchesPowder River County12.51Toole County: 12.28 inchesToole County12.28Valley County: 12.19 inchesValley County12.19McCone County: 11.98 inchesMcCone County11.98Silver Bow County: 11.95 inchesSilver Bow County11.95Sheridan County: 11.8 inchesSheridan County11.8Carter County: 11.77 inchesCarter County11.77Wibaux County: 11.61 inchesWibaux County11.61Roosevelt County: 11.55 inchesRoosevelt County11.55Dawson County: 11.52 inchesDawson County11.52Fallon County: 11.4 inchesFallon County11.4Prairie County: 11.37 inchesPrairie County11.37Richland County: 10.83 inchesRichland County10.83Flathead County: 33.96 inchesFlathead County33.96Mineral County: 33.19 inchesMineral County33.19Lincoln County: 29.45 inchesLincoln County29.45Sanders County: 28.26 inchesSanders County28.26Park County: 24.85 inchesPark County24.85Ravalli County: 24.84 inchesRavalli County24.84Lake County: 24.4 inchesLake County24.4Missoula County: 24.17 inchesMissoula County24.17Gallatin County: 23.35 inchesGallatin County23.35Glacier County: 20.71 inchesGlacier County20.71Madison County: 20.69 inchesMadison County20.69Powell County: 19.1 inchesPowell County19.1Meagher County: 18.89 inchesMeagher County18.89Granite County: 18.31 inchesGranite County18.31Lewis and Clark County: 18.27 inchesLewis and Clark County18.27Judith Basin County: 17.72 inchesJudith Basin County17.72Sweet Grass County: 17.6 inchesSweet Grass County17.6Fergus County: 17.2 inchesFergus County17.2Blaine County: 17.14 inchesBlaine County17.14Deer Lodge County: 17.03 inchesDeer Lodge County17.03Chouteau County: 16.91 inchesChouteau County16.91Stillwater County: 16.34 inchesStillwater County16.34Teton County: 16.23 inchesTeton County16.23Cascade County: 16.11 inchesCascade County16.11Treasure County: 15.38 inchesTreasure County15.38Beaverhead County: 15.34 inchesBeaverhead County15.34Hill County: 15.02 inchesHill County15.02Rosebud County: 14.81 inchesRosebud County14.81Musselshell County: 14.57 inchesMusselshell County14.57Carbon County: 14.55 inchesCarbon County14.55Pondera County: 14.46 inchesPondera County14.46Yellowstone County: 14.03 inchesYellowstone County14.03Big Horn County: 14.01 inchesBig Horn County14.01Liberty County: 13.87 inchesLiberty County13.87Golden Valley County: 13.85 inchesGolden Valley County13.85Wheatland County: 13.52 inchesWheatland County13.52Daniels County: 13.46 inchesDaniels County13.46Broadwater County: 13.43 inchesBroadwater County13.43Custer County: 13.14 inchesCuster County13.14Garfield County: 13.14 inchesGarfield County13.14Phillips County: 13.02 inchesPhillips County13.02Jefferson County: 12.61 inchesJefferson County12.61Petroleum County: 12.6 inchesPetroleum County12.6Powder River County: 12.51 inchesPowder River County12.51Toole County: 12.28 inchesToole County12.28Valley County: 12.19 inchesValley County12.19McCone County: 11.98 inchesMcCone County11.98Silver Bow County: 11.95 inchesSilver Bow County11.95Sheridan County: 11.8 inchesSheridan County11.8Carter County: 11.77 inchesCarter County11.77Wibaux County: 11.61 inchesWibaux County11.61Roosevelt County: 11.55 inchesRoosevelt County11.55Dawson County: 11.52 inchesDawson County11.52Fallon County: 11.4 inchesFallon County11.4Prairie County: 11.37 inchesPrairie County11.37Richland County: 10.83 inchesRichland County10.83
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2024
inches
Change on 2023
1Flathead County33.96+27%
2Mineral County33.19+19.5%
3Lincoln County29.45+20.6%
4Sanders County28.26+24.8%
5Park County24.85-10.9%
6Ravalli County24.84+3.5%
7Lake County24.4+16.9%
8Missoula County24.17-4.1%
9Gallatin County23.35-6.9%
10Glacier County20.71+11.3%
11Madison County20.69-17.1%
12Powell County19.1-19%
13Meagher County18.89-17.5%
14Granite County18.31-13.7%
15Lewis and Clark County18.27-10.4%
16Judith Basin County17.72-16.5%
17Sweet Grass County17.6-26.6%
18Fergus County17.2-11.3%
19Blaine County17.14+23.6%
20Deer Lodge County17.03-26.7%
21Chouteau County16.91+36.2%
22Stillwater County16.34-23.5%
23Teton County16.23+1.9%
24Cascade County16.11-7.3%
25Treasure County15.38-12.7%
26Beaverhead County15.34-25.4%
27Hill County15.02+28.7%
28Rosebud County14.81-17.4%
29Musselshell County14.57-16.2%
30Carbon County14.55-29.4%
31Pondera County14.46+7.7%
32Yellowstone County14.03-19.7%
33Big Horn County14.01-29.9%
34Liberty County13.87+21.9%
35Golden Valley County13.85-26.8%
36Wheatland County13.52-28.7%
37Daniels County13.46+22.6%
38Broadwater County13.43-22.9%
39Custer County13.14-15.4%
39Garfield County13.14-13.5%
41Phillips County13.02+2.2%
42Jefferson County12.61-39%
43Petroleum County12.6-18.3%
44Powder River County12.51-24.5%
45Toole County12.28+17.5%
46Valley County12.19+1.7%
47McCone County11.98-12.6%
48Silver Bow County11.95-44.2%
49Sheridan County11.8+7%
50Carter County11.77-25.8%
51Wibaux County11.61-38.8%
52Roosevelt County11.55-3.9%
53Dawson County11.52-30%
54Fallon County11.4-36.4%
55Prairie County11.37-30%
56Richland County10.83-25.6%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.

Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December precipitation, counties (Counties in Montana by annual precipitation, 2024) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December precipitation, counties, Counties in Montana by annual precipitation, 2024. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Montana by annual precipitation, 2024. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Montana by annual precipitation, 2024 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_montana_by_2024,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Montana by annual precipitation, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, counties: Counties in Montana by annual precipitation, 2024
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2024.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Montana by annual precipitation using official data, and cite the source.
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Questions

Which county has the highest annual precipitation?

Flathead County, with 33.96 inches in 2024, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Richland County, with 10.83 inches in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Annual precipitation: other rankings

Counties in Montana: more rankings