Counties in Montana by average annual temperature

Yellowstone County had the highest average annual temperature of 56 counties in 2014, at 45.6 °F. Daniels County had the lowest, at 38.2 °F. The median was 41.9 °F and the figure for Montana was 41.9 °F. Source: NOAA National Centers for Environmental Information.

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Lowest38.2Daniels County
Median41.956 counties
Montana41.9History

Map of counties, 2014

Beaverhead County: 38.8 °FBig Horn County: 44.2 °FBlaine County: 41.9 °FBroadwater County: 42.9 °FCarbon County: 42 °FCarter County: 42.7 °FCascade County: 43 °FChouteau County: 43.1 °FCuster County: 44.2 °FDaniels County: 38.2 °FDawson County: 41.9 °FDeer Lodge County: 39 °FFallon County: 42.2 °FFergus County: 43.1 °FFlathead County: 40.3 °FGallatin County: 39.9 °FGarfield County: 43.5 °FGlacier County: 39.4 °FGolden Valley County: 43.8 °FGranite County: 39.8 °FHill County: 41.1 °FJefferson County: 41.2 °FJudith Basin County: 40.9 °FLake County: 43.8 °FLewis and Clark County: 41 °FLiberty County: 41.2 °FLincoln County: 42.1 °FMcCone County: 41.8 °FMadison County: 40.3 °FMeagher County: 39.9 °FMineral County: 42.7 °FMissoula County: 42 °FMusselshell County: 44.9 °FPark County: 39.4 °FPetroleum County: 45 °FPhillips County: 42.2 °FPondera County: 41.5 °FPowder River County: 44.7 °FPowell County: 39.9 °FPrairie County: 42.8 °FRavalli County: 41.1 °FRichland County: 41.1 °FRoosevelt County: 40.2 °FRosebud County: 44.2 °FSanders County: 43.2 °FSheridan County: 38.6 °FSilver Bow County: 40.3 °FStillwater County: 43.1 °FSweet Grass County: 42.8 °FTeton County: 41.7 °FToole County: 41.4 °FTreasure County: 45 °FValley County: 40.4 °FWheatland County: 42.5 °FWibaux County: 41.7 °FYellowstone County: 45.6 °F
  • Under 40
  • 40 to 41
  • 41 to 42
  • 42 to 43
  • 43 to 44
  • 44 and over
°F, 2014. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2014

Yellowstone County: 45.6 °FYellowstone County45.6Petroleum County: 45 °FPetroleum County45Treasure County: 45 °FTreasure County45Musselshell County: 44.9 °FMusselshell County44.9Powder River County: 44.7 °FPowder River County44.7Big Horn County: 44.2 °FBig Horn County44.2Custer County: 44.2 °FCuster County44.2Rosebud County: 44.2 °FRosebud County44.2Golden Valley County: 43.8 °FGolden Valley County43.8Lake County: 43.8 °FLake County43.8Garfield County: 43.5 °FGarfield County43.5Sanders County: 43.2 °FSanders County43.2Chouteau County: 43.1 °FChouteau County43.1Fergus County: 43.1 °FFergus County43.1Stillwater County: 43.1 °FStillwater County43.1Cascade County: 43 °FCascade County43Broadwater County: 42.9 °FBroadwater County42.9Prairie County: 42.8 °FPrairie County42.8Sweet Grass County: 42.8 °FSweet Grass County42.8Carter County: 42.7 °FCarter County42.7Mineral County: 42.7 °FMineral County42.7Wheatland County: 42.5 °FWheatland County42.5Fallon County: 42.2 °FFallon County42.2Phillips County: 42.2 °FPhillips County42.2Lincoln County: 42.1 °FLincoln County42.1Carbon County: 42 °FCarbon County42Missoula County: 42 °FMissoula County42Blaine County: 41.9 °FBlaine County41.9Dawson County: 41.9 °FDawson County41.9McCone County: 41.8 °FMcCone County41.8Teton County: 41.7 °FTeton County41.7Wibaux County: 41.7 °FWibaux County41.7Pondera County: 41.5 °FPondera County41.5Toole County: 41.4 °FToole County41.4Jefferson County: 41.2 °FJefferson County41.2Liberty County: 41.2 °FLiberty County41.2Hill County: 41.1 °FHill County41.1Ravalli County: 41.1 °FRavalli County41.1Richland County: 41.1 °FRichland County41.1Lewis and Clark County: 41 °FLewis and Clark County41Judith Basin County: 40.9 °FJudith Basin County40.9Valley County: 40.4 °FValley County40.4Flathead County: 40.3 °FFlathead County40.3Madison County: 40.3 °FMadison County40.3Silver Bow County: 40.3 °FSilver Bow County40.3Roosevelt County: 40.2 °FRoosevelt County40.2Gallatin County: 39.9 °FGallatin County39.9Meagher County: 39.9 °FMeagher County39.9Powell County: 39.9 °FPowell County39.9Granite County: 39.8 °FGranite County39.8Glacier County: 39.4 °FGlacier County39.4Park County: 39.4 °FPark County39.4Deer Lodge County: 39 °FDeer Lodge County39Beaverhead County: 38.8 °FBeaverhead County38.8Sheridan County: 38.6 °FSheridan County38.6Daniels County: 38.2 °FDaniels County38.2Yellowstone County: 45.6 °FYellowstone County45.6Petroleum County: 45 °FPetroleum County45Treasure County: 45 °FTreasure County45Musselshell County: 44.9 °FMusselshell County44.9Powder River County: 44.7 °FPowder River County44.7Big Horn County: 44.2 °FBig Horn County44.2Custer County: 44.2 °FCuster County44.2Rosebud County: 44.2 °FRosebud County44.2Golden Valley County: 43.8 °FGolden Valley County43.8Lake County: 43.8 °FLake County43.8Garfield County: 43.5 °FGarfield County43.5Sanders County: 43.2 °FSanders County43.2Chouteau County: 43.1 °FChouteau County43.1Fergus County: 43.1 °FFergus County43.1Stillwater County: 43.1 °FStillwater County43.1Cascade County: 43 °FCascade County43Broadwater County: 42.9 °FBroadwater County42.9Prairie County: 42.8 °FPrairie County42.8Sweet Grass County: 42.8 °FSweet Grass County42.8Carter County: 42.7 °FCarter County42.7Mineral County: 42.7 °FMineral County42.7Wheatland County: 42.5 °FWheatland County42.5Fallon County: 42.2 °FFallon County42.2Phillips County: 42.2 °FPhillips County42.2Lincoln County: 42.1 °FLincoln County42.1Carbon County: 42 °FCarbon County42Missoula County: 42 °FMissoula County42Blaine County: 41.9 °FBlaine County41.9Dawson County: 41.9 °FDawson County41.9McCone County: 41.8 °FMcCone County41.8Teton County: 41.7 °FTeton County41.7Wibaux County: 41.7 °FWibaux County41.7Pondera County: 41.5 °FPondera County41.5Toole County: 41.4 °FToole County41.4Jefferson County: 41.2 °FJefferson County41.2Liberty County: 41.2 °FLiberty County41.2Hill County: 41.1 °FHill County41.1Ravalli County: 41.1 °FRavalli County41.1Richland County: 41.1 °FRichland County41.1Lewis and Clark County: 41 °FLewis and Clark County41Judith Basin County: 40.9 °FJudith Basin County40.9Valley County: 40.4 °FValley County40.4Flathead County: 40.3 °FFlathead County40.3Madison County: 40.3 °FMadison County40.3Silver Bow County: 40.3 °FSilver Bow County40.3Roosevelt County: 40.2 °FRoosevelt County40.2Gallatin County: 39.9 °FGallatin County39.9Meagher County: 39.9 °FMeagher County39.9Powell County: 39.9 °FPowell County39.9Granite County: 39.8 °FGranite County39.8Glacier County: 39.4 °FGlacier County39.4Park County: 39.4 °FPark County39.4Deer Lodge County: 39 °FDeer Lodge County39Beaverhead County: 38.8 °FBeaverhead County38.8Sheridan County: 38.6 °FSheridan County38.6Daniels County: 38.2 °FDaniels County38.2
°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2014
°F
Change on 2013
1Yellowstone County45.6-2.4%
2Petroleum County45-1.5%
2Treasure County45-2.2%
4Musselshell County44.9-2.4%
5Powder River County44.7-0.9%
6Big Horn County44.2-1.8%
6Custer County44.2-1.6%
6Rosebud County44.2-1.8%
9Golden Valley County43.8-2%
9Lake County43.8-0.9%
11Garfield County43.5-1.1%
12Sanders County43.2-0.7%
13Chouteau County43.1-2.3%
13Fergus County43.1-2.3%
13Stillwater County43.1-2%
16Cascade County43-2.5%
17Broadwater County42.9-1.2%
18Prairie County42.8-1.8%
18Sweet Grass County42.8-1.2%
20Carter County42.7-1.8%
20Mineral County42.7+0.9%
22Wheatland County42.5-2.3%
23Fallon County42.2-1.9%
23Phillips County42.2-1.2%
25Lincoln County42.1-0.7%
26Carbon County42-1.9%
26Missoula County42-0.5%
28Blaine County41.9-0.7%
28Dawson County41.9-0.9%
30McCone County41.8-0.2%
31Teton County41.7-2.3%
31Wibaux County41.7-1.4%
33Pondera County41.5-2.1%
34Toole County41.4-2.6%
35Jefferson County41.2-1.2%
35Liberty County41.2-2.4%
37Hill County41.1-1.2%
37Ravalli County41.1+0.7%
37Richland County41.1+0.5%
40Lewis and Clark County41-2.1%
41Judith Basin County40.9-2.9%
42Valley County40.40%
43Flathead County40.3-1.5%
43Madison County40.3+0.5%
43Silver Bow County40.3+0.5%
46Roosevelt County40.2+1.3%
47Gallatin County39.9-0.3%
47Meagher County39.9-1%
47Powell County39.9-1.5%
50Granite County39.80%
51Glacier County39.4-2.5%
51Park County39.40%
53Deer Lodge County39+1%
54Beaverhead County38.8+1.3%
55Sheridan County38.6+0.5%
56Daniels County38.2+1.3%

Other periods

About this ranking

Mean air temperature from January to December, in degrees Fahrenheit: the average of the 12 monthly mean temperatures. 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, so a county with mountains and valleys has one value for very different local climates. 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 average temperature, 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 average temperature, counties (Counties in Montana by average annual temperature, 2014) [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 average temperature, counties, Counties in Montana by average annual temperature, 2014. 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/average-annual-temperature/montana-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December average temperature, counties. Counties in Montana by average annual temperature, 2014. 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/average-annual-temperature/montana-counties?period=2014.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Montana by average annual temperature, 2014 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/average-annual-temperature/montana-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_montana_by_2014,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Montana by average annual temperature, 2014}},
  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/average-annual-temperature/montana-counties?period=2014. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, 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 average temperature, counties: Counties in Montana by average annual temperature, 2014
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/average-annual-temperature/montana-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/montana-counties?period=2014.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, 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 average annual temperature using official data, and cite the source.
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Questions

Which county has the highest average annual temperature?

Yellowstone County, with 45.6 °F in 2014, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Daniels County, with 38.2 °F in 2014.

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 average temperature, counties. Retrieved 2026-10-12.

Average annual temperature: other rankings

Counties in Montana: more rankings