Counties in Oregon by average annual temperature

Curry County had the highest average annual temperature of 36 counties in 2015, at 55.2 °F. Wallowa County had the lowest, at 46.5 °F. The median was 52.3 °F and the figure for Oregon was 50.4 °F. Source: NOAA National Centers for Environmental Information.

Highest55.2Curry County

Lowest46.5Wallowa County

Median52.336 counties

Oregon50.4History

Map of counties, 2015

Under 48
48 to 51
51 to 52
52 to 53
53 to 54
54 and over

°F, 2015. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2015

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

Full ranking

Rank	Counties	2015 °F	Change on 2014
1	Curry County	55.2	-0.2%
2	Benton County	55.1	+1.1%
3	Yamhill County	54.9	+1.3%
4	Coos County	54.8	-0.9%
4	Polk County	54.8	+1.1%
6	Multnomah County	54.4	+2.4%
7	Lincoln County	54.2	+0.7%
8	Josephine County	54.1	+0.4%
8	Washington County	54.1	+2.3%
10	Douglas County	53.8	+0.7%
11	Gilliam County	53.4	+3.3%
12	Columbia County	53.3	+1.7%
12	Sherman County	53.3	+3.7%
14	Jackson County	53.2	+0.2%
15	Marion County	52.8	+1.9%
15	Morrow County	52.8	+3.1%
17	Lane County	52.7	+1.3%
18	Clatsop County	52.4	+1.2%
19	Linn County	52.3	+1.8%
19	Tillamook County	52.3	+1.2%
21	Umatilla County	51.6	+2.6%
21	Wasco County	51.6	+4%
23	Clackamas County	51.5	+2.8%
24	Malheur County	50.8	+1.2%
25	Jefferson County	50.2	+3.5%
25	Wheeler County	50.2	+3.3%
27	Hood River County	49	+3.8%
28	Harney County	48.7	+0.4%
29	Crook County	48.5	+1.9%
30	Baker County	48.4	+2.3%
31	Lake County	47.8	+0.4%
32	Klamath County	47.4	+1.1%
33	Union County	47.3	+2.4%
34	Grant County	47.1	+2.2%
35	Deschutes County	46.9	+2.2%
36	Wallowa County	46.5	+2.9%

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 Oregon by average annual temperature, 2015) [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 Oregon by average annual temperature, 2015. 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/oregon-counties?period=2015. 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 Oregon by average annual temperature, 2015. 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/oregon-counties?period=2015.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Oregon by average annual temperature, 2015 [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/oregon-counties?period=2015 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_oregon_by_2015,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Oregon by average annual temperature, 2015}},
  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/oregon-counties?period=2015. 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 Oregon by average annual temperature, 2015
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/oregon-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/oregon-counties?period=2015.
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?

Curry County, with 55.2 °F in 2015, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Wallowa County, with 46.5 °F in 2015.

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.