Counties in Colorado by average annual temperature

Baca County had the highest average annual temperature of 64 counties in 2020, at 55.2 °F. Lake County had the lowest, at 35.7 °F. The median was 46.9 °F and the figure for Colorado was 47.3 °F. Source: NOAA National Centers for Environmental Information.

Highest55.2Baca County

Lowest35.7Lake County

Median46.964 counties

Colorado47.3History

Map of counties, 2020

Under 39
39 to 44
44 to 47
47 to 51
51 to 52
52 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	Baca County	55.2	+4.3%
2	Bent County	55.1	+3.4%
3	Otero County	54.9	+3.4%
3	Prowers County	54.9	+3.6%
5	Pueblo County	53.9	+3.1%
6	Kiowa County	53.6	+3.7%
7	Crowley County	53.3	+2.9%
8	Las Animas County	53	+3.5%
9	Cheyenne County	52.9	+4.8%
10	Kit Carson County	52.8	+4.6%
11	Yuma County	52.6	+5.2%
12	Broomfield County	52.3	+4.4%
13	Denver County	52.2	+4.8%
14	Phillips County	51.7	+6.6%
15	Washington County	51.6	+5.1%
16	Sedgwick County	51.5	+7.1%
17	Adams County	51.4	+5.5%
17	Lincoln County	51.4	+4.5%
17	Morgan County	51.4	+4.9%
20	Logan County	51.3	+5.6%
21	Arapahoe County	50.9	+5.8%
22	Montezuma County	50.6	+4.5%
23	Weld County	50.2	+5.7%
24	El Paso County	50	+4.8%
25	Montrose County	49.5	+4.4%
26	Elbert County	49.4	+5.1%
27	Huerfano County	49.2	+4%
27	Mesa County	49.2	+4%
29	Delta County	48.6	+4.3%
30	Douglas County	48.1	+4.1%
31	Jefferson County	47.4	+3.9%
32	La Plata County	47	+5.6%
33	San Miguel County	46.7	+4.7%
34	Fremont County	46.5	+2.9%
35	Boulder County	46.2	+4.1%
36	Archuleta County	46	+5.7%
37	Rio Blanco County	45.4	+3.9%
38	Dolores County	45.3	+5.3%
39	Garfield County	44.9	+4.2%
40	Alamosa County	44.8	+5.9%
40	Moffat County	44.8	+3.7%
42	Costilla County	44.2	+4.5%
43	Larimer County	43.6	+3.8%
44	Ouray County	43.3	+4.6%
45	Custer County	43.1	+4.1%
46	Conejos County	42	+4.5%
47	Rio Grande County	41.9	+6.6%
48	Teller County	41.2	+3.5%
49	Routt County	41	+4.1%
50	Gilpin County	40.8	+4.3%
50	Saguache County	40.8	+6%
52	Eagle County	40.7	+4.1%
53	Gunnison County	39.6	+5.3%
54	Pitkin County	39.2	+3.4%
55	Chaffee County	39.1	+4.5%
56	Mineral County	38.9	+6.3%
56	Park County	38.9	+3.2%
58	Clear Creek County	38.8	+4%
59	Grand County	38.4	+3.8%
60	Hinsdale County	38.1	+5.8%
61	Jackson County	37.7	+4.1%
62	San Juan County	37.3	+6.3%
63	Summit County	37	+3.9%
64	Lake County	35.7	+4.4%

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 Colorado 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 Colorado 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/colorado-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 Colorado 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/colorado-counties?period=2020.

Harvard

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

BibTeX

@misc{noaa_counties_in_colorado_by_2020,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Colorado 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/colorado-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 Colorado 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/colorado-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/colorado-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?

Baca County, with 55.2 °F in 2020, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Lake County, with 35.7 °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.