Counties in Wyoming by annual precipitation

Teton County had the highest annual precipitation of 23 counties in 2017, at 45.73 inches. Sweetwater County had the lowest, at 11.16 inches. The median was 15.32 inches and the figure for Wyoming was 18.66 inches. Source: NOAA National Centers for Environmental Information.

Highest45.73Teton County

Lowest11.16Sweetwater County

Median15.3223 counties

Wyoming18.66History

Map of counties, 2017

Under 15
15 to 16
16 to 20
20 and over

inches, 2017. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2017

inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2017 inches	Change on 2016
1	Teton County	45.73	+21.3%
2	Park County	29.73	+27.4%
3	Lincoln County	26.4	+7.1%
4	Sublette County	24.72	+11.9%
5	Fremont County	21.06	+12.6%
6	Sheridan County	19.5	-1%
7	Hot Springs County	18	+15.8%
8	Johnson County	17.19	+9.8%
9	Crook County	16.94	+13.5%
10	Laramie County	15.86	-1.8%
11	Carbon County	15.32	-5.3%
11	Niobrara County	15.32	+7.8%
11	Weston County	15.32	+26.2%
14	Converse County	15.29	+23.7%
15	Washakie County	15.18	+2.3%
16	Big Horn County	15.03	-2.5%
17	Albany County	14.96	+6.1%
18	Goshen County	14.9	+0.7%
19	Campbell County	14.34	+7.1%
20	Platte County	14.08	-0.2%
21	Uinta County	13.58	-6.3%
22	Natrona County	12.5	-4.4%
23	Sweetwater County	11.16	-13.2%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. 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, not the reading at one weather station. 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 precipitation, 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 precipitation, counties (Counties in Wyoming by annual precipitation, 2017) [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 precipitation, counties, Counties in Wyoming by annual precipitation, 2017. 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/annual-precipitation/wyoming-counties?period=2017. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Wyoming by annual precipitation, 2017. 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/annual-precipitation/wyoming-counties?period=2017.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Wyoming by annual precipitation, 2017 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/wyoming-counties?period=2017 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_wyoming_by_2017,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Wyoming by annual precipitation, 2017}},
  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/annual-precipitation/wyoming-counties?period=2017. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, 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 precipitation, counties: Counties in Wyoming by annual precipitation, 2017
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/annual-precipitation/wyoming-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/wyoming-counties?period=2017.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, 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 annual precipitation?

Teton County, with 45.73 inches in 2017, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Sweetwater County, with 11.16 inches in 2017.

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 precipitation, counties. Retrieved 2026-10-12.