Counties in Utah by average annual temperature

Washington County had the highest average annual temperature of 29 counties in 2023, at 55.4 °F. Summit County had the lowest, at 38.7 °F. The median was 47.9 °F and the figure for Utah was 48.5 °F. Source: NOAA National Centers for Environmental Information.

Highest55.4Washington County

Lowest38.7Summit County

Median47.929 counties

Utah48.5History

Map of counties, 2023

Under 44
44 to 45
45 to 49
49 to 50
50 and over

°F, 2023. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

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

Full ranking

Rank	Counties	2023 °F	Change on 2022
1	Washington County	55.4	-2.8%
2	San Juan County	53	-1.5%
3	Kane County	52	-2.6%
4	Wayne County	51.5	-0.6%
5	Grand County	51.4	-1.5%
6	Millard County	50.4	-2.3%
7	Emery County	50.3	-1.6%
8	Tooele County	50.1	-2.9%
9	Juab County	49.7	-2.4%
10	Davis County	49.5	-1.2%
11	Salt Lake County	49.4	-0.8%
12	Garfield County	48.6	-1.8%
13	Beaver County	48.5	-3%
13	Iron County	48.5	-3.2%
15	Box Elder County	47.9	-0.6%
16	Utah County	46.9	-1.3%
17	Weber County	46.2	-1.5%
18	Uintah County	44.9	-4.7%
19	Sevier County	44.8	-1.5%
20	Carbon County	44.3	-2.9%
21	Sanpete County	44.1	-1.8%
22	Morgan County	43.9	-1.1%
22	Piute County	43.9	-1.1%
24	Cache County	43.4	-0.7%
25	Wasatch County	41.2	-1.9%
26	Duchesne County	41.1	-3.5%
27	Daggett County	40.4	-3.8%
28	Rich County	39.5	-2.7%
29	Summit County	38.7	-1.8%

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 Utah by average annual temperature, 2023) [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 Utah by average annual temperature, 2023. 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/utah-counties?period=2023. 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 Utah by average annual temperature, 2023. 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/utah-counties?period=2023.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Utah by average annual temperature, 2023 [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/utah-counties?period=2023 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_utah_by_2023,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Utah by average annual temperature, 2023}},
  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/utah-counties?period=2023. 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 Utah by average annual temperature, 2023
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/utah-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/utah-counties?period=2023.
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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Rank Counties in Utah by average annual temperature using official data, and cite the source.

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Questions

Which county has the highest average annual temperature?

Washington County, with 55.4 °F in 2023, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Summit County, with 38.7 °F in 2023.

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.