Counties in Utah by average annual temperature, 2025

Washington County had the highest average annual temperature of 29 counties in 2025, at 58.7 °F. Summit County had the lowest, at 41.3 °F. The median was 51.3 °F and the figure for Utah was 51.8 °F. Source: NOAA National Centers for Environmental Information.

Highest58.7Washington County

Lowest41.3Summit County

Median51.329 counties

Utah51.8History

All counties, 2025

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

Full ranking

Rank	Counties	2025 °F	Change on 2024
1	Washington County	58.7	+0.5%
2	San Juan County	55.7	+0.7%
3	Kane County	55.2	+0.4%
4	Wayne County	54.8	+1.9%
5	Grand County	54.5	+1.5%
6	Millard County	54.2	+1.7%
7	Tooele County	53.7	+2.1%
8	Emery County	53.5	+1.9%
9	Juab County	53.4	+2.1%
10	Davis County	52.7	+2.1%
11	Salt Lake County	52.3	+1.8%
12	Beaver County	52.1	+0.8%
13	Iron County	51.9	+1%
14	Garfield County	51.8	+1.2%
15	Box Elder County	51.3	+1.4%
16	Uintah County	49.7	+1.8%
16	Utah County	49.7	+1.6%
18	Weber County	49.5	+2.5%
19	Carbon County	47.9	+2.8%
20	Sevier County	47.6	+2.1%
21	Cache County	47	+2.2%
22	Morgan County	46.8	+2.4%
23	Sanpete County	46.7	+1.7%
24	Piute County	46.6	+0.4%
25	Duchesne County	44.8	+2.1%
26	Daggett County	44.5	+3.2%
27	Rich County	43.8	+3.1%
28	Wasatch County	43.7	+1.9%
29	Summit County	41.3	+2.5%

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, 2025) [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, 2025. 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. 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, 2025. 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.

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, 2025 [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 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_utah_by_2025,
  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, 2025}},
  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. 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, 2025
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
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/utah-counties.
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 58.7 °F in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Summit County, with 41.3 °F in 2025.

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.