Counties in Wyoming by annual precipitation

Teton County had the highest annual precipitation of 23 counties in 2019, at 36.87 inches. Sweetwater County had the lowest, at 10.76 inches. The median was 17.38 inches and the figure for Wyoming was 18.34 inches. Source: NOAA National Centers for Environmental Information.

Highest36.87Teton County

Lowest10.76Sweetwater County

Median17.3823 counties

Wyoming18.34History

Map of counties, 2019

Under 16
16 to 17
17 to 18
18 to 21
21 and over

inches, 2019. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2019

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

Full ranking

Rank	Counties	2019 inches	Change on 2018
1	Teton County	36.87	+3.2%
2	Park County	25.88	+10.3%
3	Crook County	25.04	+14.3%
4	Lincoln County	21.7	+20.6%
5	Sheridan County	21.53	+12.3%
6	Campbell County	20.29	+11.7%
7	Weston County	19.42	-11.5%
8	Niobrara County	18.94	-15.9%
9	Sublette County	18.5	+11.2%
10	Johnson County	18.49	+22.5%
11	Laramie County	18.19	+14.1%
12	Goshen County	17.38	+10.1%
13	Hot Springs County	17.15	+32.9%
14	Big Horn County	16.56	+15.7%
14	Fremont County	16.56	+22.3%
16	Washakie County	16.55	+37.3%
17	Carbon County	16.31	+30%
18	Platte County	15.77	+3.3%
19	Converse County	15.38	-11.9%
20	Natrona County	14.94	+31.2%
21	Albany County	14.89	+14.5%
22	Uinta County	14.66	+37%
23	Sweetwater County	10.76	+29%

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, 2019) [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, 2019. 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=2019. 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, 2019. 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=2019.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Wyoming by annual precipitation, 2019 [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=2019 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_wyoming_by_2019,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Wyoming by annual precipitation, 2019}},
  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=2019. 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, 2019
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=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/wyoming-counties?period=2019.
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 36.87 inches in 2019, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Sweetwater County, with 10.76 inches in 2019.

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.