Counties in Oregon by average annual temperature

Curry County had the highest average annual temperature of 36 counties in 2020, at 54 °F. Wallowa County had the lowest, at 44.5 °F. The median was 50.7 °F and the figure for Oregon was 48.8 °F. Source: NOAA National Centers for Environmental Information.

Highest54Curry County

Lowest44.5Wallowa County

Median50.736 counties

Oregon48.8History

Map of counties, 2020

Under 47
47 to 49
49 to 51
51 to 52
52 to 53
53 and over

°F, 2020. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

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

Full ranking

Rank	Counties	2020 °F	Change on 2019
1	Curry County	54	+1.7%
2	Coos County	53.4	+0.9%
3	Benton County	53.1	+2.1%
4	Josephine County	52.6	+2.7%
4	Yamhill County	52.6	+1.7%
6	Multnomah County	52.5	+2.3%
6	Polk County	52.5	+1.5%
8	Lincoln County	52.4	+1.7%
9	Washington County	52.1	+2.4%
10	Douglas County	51.9	+1.8%
11	Columbia County	51.7	+2%
11	Gilliam County	51.7	+5.5%
11	Jackson County	51.7	+2.8%
14	Sherman County	51.5	+5.5%
15	Morrow County	51.2	+5.1%
16	Clatsop County	50.8	+1.4%
16	Lane County	50.8	+2%
16	Marion County	50.8	+2.2%
19	Tillamook County	50.5	+2%
20	Linn County	50.2	+2.4%
20	Umatilla County	50.2	+5%
22	Wasco County	49.9	+5.1%
23	Clackamas County	49.5	+2.7%
24	Malheur County	49.3	+3.8%
25	Jefferson County	49.1	+5.4%
26	Wheeler County	48.6	+5.4%
27	Harney County	47.5	+4.4%
28	Crook County	47.4	+4.9%
29	Hood River County	46.9	+4%
30	Baker County	46.8	+3.8%
31	Lake County	46.7	+4.5%
32	Klamath County	46.1	+4.1%
33	Deschutes County	45.7	+4.3%
33	Union County	45.7	+4.1%
35	Grant County	45.5	+4.1%
36	Wallowa County	44.5	+4%

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, 2020) [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, 2020. 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=2020. 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, 2020. 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=2020.

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, 2020 [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=2020 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_oregon_by_2020,
  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, 2020}},
  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=2020. 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, 2020
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=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/oregon-counties?period=2020.
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 54 °F in 2020, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Wallowa County, with 44.5 °F in 2020.

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.