Counties in Idaho by average annual temperature

Canyon County had the highest average annual temperature of 44 counties in 2022, at 51.5 °F. Custer County had the lowest, at 38.6 °F. The median was 44.2 °F and the figure for Idaho was 43.5 °F. Source: NOAA National Centers for Environmental Information.

Highest51.5Canyon County

Lowest38.6Custer County

Median44.244 counties

Idaho43.5History

Map of counties, 2022

Under 41
41 to 43
43 to 44
44 to 46
46 to 48
48 and over

°F, 2022. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2022

°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2022 °F	Change on 2021
1	Canyon County	51.5	-4.8%
2	Ada County	51.3	-4.5%
3	Payette County	51.1	-5%
4	Gooding County	49.2	-5%
5	Nez Perce County	48.9	-3.6%
6	Gem County	48.7	-4.1%
7	Jerome County	48.6	-6.4%
8	Washington County	48.3	-2.6%
9	Owyhee County	47.7	-3.8%
10	Twin Falls County	47.6	-4.2%
11	Elmore County	47.2	-4.5%
12	Latah County	46.6	-2.7%
13	Oneida County	46.3	-2.9%
14	Benewah County	46.1	-2.5%
14	Lincoln County	46.1	-7.4%
16	Cassia County	46	-4.6%
17	Kootenai County	45.7	-3.8%
18	Lewis County	45.6	-3.6%
19	Minidoka County	45.4	-7.3%
20	Bannock County	44.7	-5.5%
21	Power County	44.6	-6.3%
22	Franklin County	44.2	-4.7%
23	Clearwater County	44.1	-2%
24	Adams County	43.7	-3.3%
24	Bonner County	43.7	-3.1%
26	Bingham County	43.6	-6.2%
27	Boise County	43.5	-4.2%
28	Shoshone County	42.9	-2.7%
29	Madison County	42.6	-4.5%
30	Camas County	42.5	-2.3%
31	Jefferson County	42.4	-5.6%
32	Idaho County	41.9	-3%
33	Blaine County	41.8	-5.4%
34	Bonneville County	41.5	-5%
34	Boundary County	41.5	-3.9%
36	Caribou County	41.4	-4.8%
37	Butte County	40.4	-6.3%
38	Bear Lake County	39.8	-6.4%
39	Valley County	39.7	-3.4%
40	Clark County	39.6	-4.8%
40	Lemhi County	39.6	-3.9%
42	Fremont County	39.2	-5.1%
42	Teton County	39.2	-5.8%
44	Custer County	38.6	-3.5%

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 Idaho by average annual temperature, 2022) [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 Idaho by average annual temperature, 2022. 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/idaho-counties?period=2022. 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 Idaho by average annual temperature, 2022. 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/idaho-counties?period=2022.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Idaho by average annual temperature, 2022 [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/idaho-counties?period=2022 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_idaho_by_2022,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Idaho by average annual temperature, 2022}},
  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/idaho-counties?period=2022. 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 Idaho by average annual temperature, 2022
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/idaho-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/idaho-counties?period=2022.
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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/average-annual-temperature/idaho-counties?period=2022" width="760" height="500" title="Counties in Idaho by average annual temperature, 2022, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Idaho by average annual temperature using official data, and cite the source.

rank_places {"indicator":"average_temperature_annual","level":"province","within":"Idaho","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=average_temperature_annual&level=province&within=Idaho&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest average annual temperature?

Canyon County, with 51.5 °F in 2022, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Custer County, with 38.6 °F in 2022.

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.