Counties in Washington by average annual temperature, 2025

Benton County had the highest average annual temperature of 39 counties in 2025, at 54.9 °F. Pend Oreille County had the lowest, at 44.6 °F. The median was 50.4 °F and the figure for Washington was 49.1 °F. Source: NOAA National Centers for Environmental Information.

Highest54.9Benton County

Lowest44.6Pend Oreille County

Median50.439 counties

Washington49.1History

All counties, 2025

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

Full ranking

Rank	Counties	2025 °F	Change on 2024
1	Benton County	54.9	+1.9%
2	Walla Walla County	54.5	+1.9%
3	Franklin County	54.1	+1.5%
4	Clark County	53.5	+0.9%
5	Kitsap County	53.2	+1.1%
6	Grant County	53.1	+1.9%
7	Thurston County	52.8	+1.1%
8	Island County	52.4	+1%
9	Adams County	52.1	+1.8%
10	Whitman County	52	+2%
11	Pacific County	51.8	+0.4%
11	Wahkiakum County	51.8	+0.6%
13	San Juan County	51.7	+0.2%
14	Cowlitz County	51.4	+1%
15	Grays Harbor County	50.9	+0.2%
16	Asotin County	50.7	+0.6%
17	Garfield County	50.6	+1%
17	Mason County	50.6	+1%
19	Klickitat County	50.5	+2%
20	Douglas County	50.4	+1.4%
21	Columbia County	49.9	+1.2%
22	Spokane County	49.8	+1.8%
23	Lewis County	49.4	+1.9%
23	Lincoln County	49.4	+2.1%
25	King County	49.3	+1.2%
26	Clallam County	49	+1.2%
27	Pierce County	48.7	+1.7%
28	Yakima County	48.5	+2.5%
29	Snohomish County	48.3	+1%
30	Skagit County	47.6	+1.1%
31	Stevens County	47.5	+1.7%
32	Kittitas County	47.3	+2.4%
32	Skamania County	47.3	+2.2%
34	Jefferson County	47.1	+1.1%
35	Whatcom County	46	+1.1%
36	Ferry County	45.7	+2.2%
37	Chelan County	45.5	+2.5%
38	Okanogan County	45	+1.8%
39	Pend Oreille County	44.6	+1.6%

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 Washington by average annual temperature, 2025) [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 Washington by average annual temperature, 2025. 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/washington-counties. 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 Washington by average annual temperature, 2025. 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/washington-counties.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Washington by average annual temperature, 2025 [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/washington-counties (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_washington_by_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Washington by average annual temperature, 2025}},
  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/washington-counties. 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 Washington by average annual temperature, 2025
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/washington-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/washington-counties.
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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Questions

Which county has the highest average annual temperature?

Benton County, with 54.9 °F in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Pend Oreille County, with 44.6 °F in 2025.

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.