Counties in Montana by annual precipitation

Park County had the highest annual precipitation of 56 counties in 2023, at 27.88 inches. Toole County had the lowest, at 10.45 inches. The median was 18.27 inches and the figure for Montana was 18.41 inches. Source: NOAA National Centers for Environmental Information.

Keep it in a collection in your library.
Highest27.88Park County
Lowest10.45Toole County
Median18.2756 counties
Montana18.41History

Map of counties, 2023

Beaverhead County: 20.57 inchesBig Horn County: 20 inchesBlaine County: 13.87 inchesBroadwater County: 17.43 inchesCarbon County: 20.62 inchesCarter County: 15.87 inchesCascade County: 17.37 inchesChouteau County: 12.42 inchesCuster County: 15.53 inchesDaniels County: 10.98 inchesDawson County: 16.45 inchesDeer Lodge County: 23.23 inchesFallon County: 17.93 inchesFergus County: 19.39 inchesFlathead County: 26.74 inchesGallatin County: 25.08 inchesGarfield County: 15.19 inchesGlacier County: 18.61 inchesGolden Valley County: 18.91 inchesGranite County: 21.22 inchesHill County: 11.67 inchesJefferson County: 20.68 inchesJudith Basin County: 21.21 inchesLake County: 20.88 inchesLewis and Clark County: 20.38 inchesLiberty County: 11.38 inchesLincoln County: 24.41 inchesMcCone County: 13.71 inchesMadison County: 24.96 inchesMeagher County: 22.89 inchesMineral County: 27.77 inchesMissoula County: 25.2 inchesMusselshell County: 17.39 inchesPark County: 27.88 inchesPetroleum County: 15.43 inchesPhillips County: 12.74 inchesPondera County: 13.43 inchesPowder River County: 16.57 inchesPowell County: 23.57 inchesPrairie County: 16.24 inchesRavalli County: 24.01 inchesRichland County: 14.56 inchesRoosevelt County: 12.02 inchesRosebud County: 17.92 inchesSanders County: 22.65 inchesSheridan County: 11.03 inchesSilver Bow County: 21.42 inchesStillwater County: 21.37 inchesSweet Grass County: 23.98 inchesTeton County: 15.92 inchesToole County: 10.45 inchesTreasure County: 17.62 inchesValley County: 11.99 inchesWheatland County: 18.95 inchesWibaux County: 18.98 inchesYellowstone County: 17.47 inches
  • Under 13
  • 13 to 16
  • 16 to 18
  • 18 to 21
  • 21 to 24
  • 24 and over
inches, 2023. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Park County: 27.88 inchesPark County27.88Mineral County: 27.77 inchesMineral County27.77Flathead County: 26.74 inchesFlathead County26.74Missoula County: 25.2 inchesMissoula County25.2Gallatin County: 25.08 inchesGallatin County25.08Madison County: 24.96 inchesMadison County24.96Lincoln County: 24.41 inchesLincoln County24.41Ravalli County: 24.01 inchesRavalli County24.01Sweet Grass County: 23.98 inchesSweet Grass County23.98Powell County: 23.57 inchesPowell County23.57Deer Lodge County: 23.23 inchesDeer Lodge County23.23Meagher County: 22.89 inchesMeagher County22.89Sanders County: 22.65 inchesSanders County22.65Silver Bow County: 21.42 inchesSilver Bow County21.42Stillwater County: 21.37 inchesStillwater County21.37Granite County: 21.22 inchesGranite County21.22Judith Basin County: 21.21 inchesJudith Basin County21.21Lake County: 20.88 inchesLake County20.88Jefferson County: 20.68 inchesJefferson County20.68Carbon County: 20.62 inchesCarbon County20.62Beaverhead County: 20.57 inchesBeaverhead County20.57Lewis and Clark County: 20.38 inchesLewis and Clark County20.38Big Horn County: 20 inchesBig Horn County20Fergus County: 19.39 inchesFergus County19.39Wibaux County: 18.98 inchesWibaux County18.98Wheatland County: 18.95 inchesWheatland County18.95Golden Valley County: 18.91 inchesGolden Valley County18.91Glacier County: 18.61 inchesGlacier County18.61Fallon County: 17.93 inchesFallon County17.93Rosebud County: 17.92 inchesRosebud County17.92Treasure County: 17.62 inchesTreasure County17.62Yellowstone County: 17.47 inchesYellowstone County17.47Broadwater County: 17.43 inchesBroadwater County17.43Musselshell County: 17.39 inchesMusselshell County17.39Cascade County: 17.37 inchesCascade County17.37Powder River County: 16.57 inchesPowder River County16.57Dawson County: 16.45 inchesDawson County16.45Prairie County: 16.24 inchesPrairie County16.24Teton County: 15.92 inchesTeton County15.92Carter County: 15.87 inchesCarter County15.87Custer County: 15.53 inchesCuster County15.53Petroleum County: 15.43 inchesPetroleum County15.43Garfield County: 15.19 inchesGarfield County15.19Richland County: 14.56 inchesRichland County14.56Blaine County: 13.87 inchesBlaine County13.87McCone County: 13.71 inchesMcCone County13.71Pondera County: 13.43 inchesPondera County13.43Phillips County: 12.74 inchesPhillips County12.74Chouteau County: 12.42 inchesChouteau County12.42Roosevelt County: 12.02 inchesRoosevelt County12.02Valley County: 11.99 inchesValley County11.99Hill County: 11.67 inchesHill County11.67Liberty County: 11.38 inchesLiberty County11.38Sheridan County: 11.03 inchesSheridan County11.03Daniels County: 10.98 inchesDaniels County10.98Toole County: 10.45 inchesToole County10.45Park County: 27.88 inchesPark County27.88Mineral County: 27.77 inchesMineral County27.77Flathead County: 26.74 inchesFlathead County26.74Missoula County: 25.2 inchesMissoula County25.2Gallatin County: 25.08 inchesGallatin County25.08Madison County: 24.96 inchesMadison County24.96Lincoln County: 24.41 inchesLincoln County24.41Ravalli County: 24.01 inchesRavalli County24.01Sweet Grass County: 23.98 inchesSweet Grass County23.98Powell County: 23.57 inchesPowell County23.57Deer Lodge County: 23.23 inchesDeer Lodge County23.23Meagher County: 22.89 inchesMeagher County22.89Sanders County: 22.65 inchesSanders County22.65Silver Bow County: 21.42 inchesSilver Bow County21.42Stillwater County: 21.37 inchesStillwater County21.37Granite County: 21.22 inchesGranite County21.22Judith Basin County: 21.21 inchesJudith Basin County21.21Lake County: 20.88 inchesLake County20.88Jefferson County: 20.68 inchesJefferson County20.68Carbon County: 20.62 inchesCarbon County20.62Beaverhead County: 20.57 inchesBeaverhead County20.57Lewis and Clark County: 20.38 inchesLewis and Clark County20.38Big Horn County: 20 inchesBig Horn County20Fergus County: 19.39 inchesFergus County19.39Wibaux County: 18.98 inchesWibaux County18.98Wheatland County: 18.95 inchesWheatland County18.95Golden Valley County: 18.91 inchesGolden Valley County18.91Glacier County: 18.61 inchesGlacier County18.61Fallon County: 17.93 inchesFallon County17.93Rosebud County: 17.92 inchesRosebud County17.92Treasure County: 17.62 inchesTreasure County17.62Yellowstone County: 17.47 inchesYellowstone County17.47Broadwater County: 17.43 inchesBroadwater County17.43Musselshell County: 17.39 inchesMusselshell County17.39Cascade County: 17.37 inchesCascade County17.37Powder River County: 16.57 inchesPowder River County16.57Dawson County: 16.45 inchesDawson County16.45Prairie County: 16.24 inchesPrairie County16.24Teton County: 15.92 inchesTeton County15.92Carter County: 15.87 inchesCarter County15.87Custer County: 15.53 inchesCuster County15.53Petroleum County: 15.43 inchesPetroleum County15.43Garfield County: 15.19 inchesGarfield County15.19Richland County: 14.56 inchesRichland County14.56Blaine County: 13.87 inchesBlaine County13.87McCone County: 13.71 inchesMcCone County13.71Pondera County: 13.43 inchesPondera County13.43Phillips County: 12.74 inchesPhillips County12.74Chouteau County: 12.42 inchesChouteau County12.42Roosevelt County: 12.02 inchesRoosevelt County12.02Valley County: 11.99 inchesValley County11.99Hill County: 11.67 inchesHill County11.67Liberty County: 11.38 inchesLiberty County11.38Sheridan County: 11.03 inchesSheridan County11.03Daniels County: 10.98 inchesDaniels County10.98Toole County: 10.45 inchesToole County10.45
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2023
inches
Change on 2022
1Park County27.88-2.4%
2Mineral County27.77-25.5%
3Flathead County26.74-27.1%
4Missoula County25.2-10.4%
5Gallatin County25.08+4%
6Madison County24.96+4.6%
7Lincoln County24.41-24.6%
8Ravalli County24.01-9.1%
9Sweet Grass County23.98+23.8%
10Powell County23.57-8.1%
11Deer Lodge County23.23+14.5%
12Meagher County22.89+9.2%
13Sanders County22.65-30.3%
14Silver Bow County21.42+40.4%
15Stillwater County21.37+9.5%
16Granite County21.22+0.6%
17Judith Basin County21.21+18.2%
18Lake County20.88-18.9%
19Jefferson County20.68+21.5%
20Carbon County20.62+17.2%
21Beaverhead County20.57+10.4%
22Lewis and Clark County20.38-6.3%
23Big Horn County20+27.9%
24Fergus County19.39+13.2%
25Wibaux County18.98+15.3%
26Wheatland County18.95+23.5%
27Golden Valley County18.91+25.9%
28Glacier County18.61-19.9%
29Fallon County17.93+12.3%
30Rosebud County17.92+24.3%
31Treasure County17.62+18.5%
32Yellowstone County17.47+19.7%
33Broadwater County17.43+7.8%
34Musselshell County17.39+16.7%
35Cascade County17.37+9.6%
36Powder River County16.57+4.3%
37Dawson County16.45+11.1%
38Prairie County16.24+15.7%
39Teton County15.92+5.5%
40Carter County15.87-1.9%
41Custer County15.53+7.4%
42Petroleum County15.43+6.3%
43Garfield County15.19+20.7%
44Richland County14.56+3.6%
45Blaine County13.87+4%
46McCone County13.71+16.6%
47Pondera County13.43-2.6%
48Phillips County12.74+15.7%
49Chouteau County12.42-2.8%
50Roosevelt County12.02-3%
51Valley County11.99+9.8%
52Hill County11.67+4.5%
53Liberty County11.38-1.5%
54Sheridan County11.03-17.1%
55Daniels County10.98-7%
56Toole County10.45-7.8%

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, 2023) [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, 2023. 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=2023. 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, 2023. 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=2023.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Montana by annual precipitation, 2023 [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=2023 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_montana_by_2023,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Montana by annual precipitation, 2023}},
  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=2023. 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, 2023
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=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/montana-counties?period=2023.
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?

Park County, with 27.88 inches in 2023, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Toole County, with 10.45 inches in 2023.

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