Counties in Oklahoma by average annual temperature

Bryan County had the highest average annual temperature of 77 counties in 2020, at 63.9 °F. Cimarron County had the lowest, at 55.8 °F. The median was 61.2 °F and the figure for Oklahoma was 60.7 °F. Source: NOAA National Centers for Environmental Information.

Highest63.9Bryan County

Lowest55.8Cimarron County

Median61.277 counties

Oklahoma60.7History

Map of counties, 2020

Under 59
59 to 60
60 to 61
61 to 62
62 to 63
63 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.

Top 40 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	Bryan County	63.9	+1.1%
2	Love County	63.6	+1.1%
2	Marshall County	63.6	+1.1%
4	Choctaw County	63.4	+0.8%
4	Jefferson County	63.4	+1.1%
6	Cotton County	63.3	+1%
6	Tillman County	63.3	+1.1%
8	Jackson County	63	+1.6%
9	Atoka County	62.9	+1%
10	Carter County	62.8	+1.1%
10	Harmon County	62.8	+2.1%
10	Johnston County	62.8	+1%
10	McCurtain County	62.8	+0.8%
14	Coal County	62.6	+1%
15	Pushmataha County	62.3	+0.8%
15	Stephens County	62.3	+1.1%
17	Comanche County	62.2	+1%
18	Greer County	62.1	+2%
18	Murray County	62.1	+0.8%
20	Garvin County	62	+1.1%
20	Haskell County	62	+0.8%
20	Kiowa County	62	+1.5%
20	Pittsburg County	62	+1%
24	McIntosh County	61.9	+1%
25	Hughes County	61.8	+1%
25	Latimer County	61.8	+0.8%
25	Pontotoc County	61.8	+0.7%
28	McClain County	61.7	+1.3%
28	Okmulgee County	61.7	+1.5%
30	Grady County	61.6	+1.1%
30	Muskogee County	61.6	+1.1%
30	Okfuskee County	61.6	+1.3%
33	Seminole County	61.5	+1%
34	Beckham County	61.4	+2.3%
34	Le Flore County	61.4	+0.3%
34	Pottawatomie County	61.4	+1.2%
34	Sequoyah County	61.4	+0.7%
38	Cleveland County	61.3	+1.2%
39	Caddo County	61.2	+1.3%
40	Wagoner County	61.1	+1.3%
41	Creek County	61	+1.5%
41	Lincoln County	61	+1.3%
41	Oklahoma County	61	+1.2%
41	Tulsa County	61	+1.5%
45	Washita County	60.9	+1.3%
46	Canadian County	60.8	+1.2%
47	Payne County	60.7	+1.3%
48	Kingfisher County	60.6	+1.3%
48	Logan County	60.6	+1.3%
50	Pawnee County	60.4	+1.5%
50	Roger Mills County	60.4	+2.5%
52	Noble County	60.3	+1.5%
53	Cherokee County	60.2	+1.5%
53	Custer County	60.2	+1.7%
55	Blaine County	60.1	+1.3%
55	Rogers County	60.1	+1%
57	Garfield County	59.8	+1.5%
58	Adair County	59.6	+1.2%
58	Kay County	59.6	+2.4%
58	Mayes County	59.6	+1%
61	Major County	59.5	+1.5%
61	Osage County	59.5	+1.7%
61	Washington County	59.5	+1.4%
64	Ottawa County	59.4	+1.5%
65	Dewey County	59.3	+1.9%
66	Grant County	59.2	+1.9%
66	Nowata County	59.2	+1.4%
68	Delaware County	59.1	+1.5%
69	Alfalfa County	59	+1.5%
69	Craig County	59	+1.5%
71	Ellis County	58.8	+2.1%
72	Woodward County	58.6	+1.9%
73	Harper County	58.4	+2.1%
73	Woods County	58.4	+1.6%
75	Beaver County	57.8	+1.9%
76	Texas County	57.6	+2.9%
77	Cimarron County	55.8	+3.1%

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 Oklahoma 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 Oklahoma 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/oklahoma-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 Oklahoma 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/oklahoma-counties?period=2020.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Oklahoma 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/oklahoma-counties?period=2020 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_oklahoma_by_2020,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Oklahoma 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/oklahoma-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 Oklahoma 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/oklahoma-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/oklahoma-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?

Bryan County, with 63.9 °F in 2020, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Cimarron County, with 55.8 °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.