Data / Rankings / Annual precipitation / Counties in South Dakota

Counties in South Dakota by annual precipitation, 2025

Deuel County had the highest annual precipitation of 66 counties in 2025, at 32.89 inches. Fall River County had the lowest, at 14.75 inches. The median was 23.49 inches and the figure for South Dakota was 23.26 inches. Source: NOAA National Centers for Environmental Information.

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Highest32.89Deuel County
Lowest14.75Fall River County
Median23.4966 counties
South Dakota23.26History

Map of counties, 2025

Aurora County: 22.87 inchesBeadle County: 23.66 inchesBennett County: 20.32 inchesBon Homme County: 28.3 inchesBrookings County: 26.47 inchesBrown County: 24.27 inchesBrule County: 22.08 inchesBuffalo County: 19.76 inchesButte County: 21.77 inchesCampbell County: 23.48 inchesCharles Mix County: 25.72 inchesClark County: 27.96 inchesClay County: 26.29 inchesCodington County: 30.76 inchesCorson County: 25.64 inchesCuster County: 16.79 inchesDavison County: 23.13 inchesDay County: 26.89 inchesDeuel County: 32.89 inchesDewey County: 25.88 inchesDouglas County: 24.76 inchesEdmunds County: 22.1 inchesFall River County: 14.75 inchesFaulk County: 22.25 inchesGrant County: 30.14 inchesGregory County: 23.5 inchesHaakon County: 23.22 inchesHamlin County: 30.65 inchesHand County: 22.25 inchesHanson County: 23.29 inchesHarding County: 21.41 inchesHughes County: 20.46 inchesHutchinson County: 25.76 inchesHyde County: 20.65 inchesJackson County: 20.6 inchesJerauld County: 22.54 inchesJones County: 21.06 inchesKingsbury County: 28.11 inchesLake County: 25.14 inchesLawrence County: 28.13 inchesLincoln County: 23.88 inchesLyman County: 21.09 inchesMcCook County: 24.78 inchesMcPherson County: 21.7 inchesMarshall County: 27.18 inchesMeade County: 22.58 inchesMellette County: 20.87 inchesMiner County: 24.75 inchesMinnehaha County: 23.41 inchesMoody County: 24.33 inchesOglala Lakota County: 17.21 inchesPennington County: 20.57 inchesPerkins County: 24.81 inchesPotter County: 22.51 inchesRoberts County: 28.66 inchesSanborn County: 22.8 inchesSpink County: 24.09 inchesStanley County: 22.54 inchesSully County: 20.2 inchesTodd County: 21.92 inchesTripp County: 21.97 inchesTurner County: 25.41 inchesUnion County: 28.04 inchesWalworth County: 25.25 inchesYankton County: 25.85 inchesZiebach County: 27.22 inches
  • Under 21
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  • 25 to 27
  • 27 and over
inches, 2025. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2025

Deuel County: 32.89 inchesDeuel County32.89Codington County: 30.76 inchesCodington County30.76Hamlin County: 30.65 inchesHamlin County30.65Grant County: 30.14 inchesGrant County30.14Roberts County: 28.66 inchesRoberts County28.66Bon Homme County: 28.3 inchesBon Homme County28.3Lawrence County: 28.13 inchesLawrence County28.13Kingsbury County: 28.11 inchesKingsbury County28.11Union County: 28.04 inchesUnion County28.04Clark County: 27.96 inchesClark County27.96Ziebach County: 27.22 inchesZiebach County27.22Marshall County: 27.18 inchesMarshall County27.18Day County: 26.89 inchesDay County26.89Brookings County: 26.47 inchesBrookings County26.47Clay County: 26.29 inchesClay County26.29Dewey County: 25.88 inchesDewey County25.88Yankton County: 25.85 inchesYankton County25.85Hutchinson County: 25.76 inchesHutchinson County25.76Charles Mix County: 25.72 inchesCharles Mix County25.72Corson County: 25.64 inchesCorson County25.64Turner County: 25.41 inchesTurner County25.41Walworth County: 25.25 inchesWalworth County25.25Lake County: 25.14 inchesLake County25.14Perkins County: 24.81 inchesPerkins County24.81McCook County: 24.78 inchesMcCook County24.78Douglas County: 24.76 inchesDouglas County24.76Miner County: 24.75 inchesMiner County24.75Moody County: 24.33 inchesMoody County24.33Brown County: 24.27 inchesBrown County24.27Spink County: 24.09 inchesSpink County24.09Lincoln County: 23.88 inchesLincoln County23.88Beadle County: 23.66 inchesBeadle County23.66Gregory County: 23.5 inchesGregory County23.5Campbell County: 23.48 inchesCampbell County23.48Minnehaha County: 23.41 inchesMinnehaha County23.41Hanson County: 23.29 inchesHanson County23.29Haakon County: 23.22 inchesHaakon County23.22Davison County: 23.13 inchesDavison County23.13Aurora County: 22.87 inchesAurora County22.87Sanborn County: 22.8 inchesSanborn County22.8Deuel County: 32.89 inchesDeuel County32.89Codington County: 30.76 inchesCodington County30.76Hamlin County: 30.65 inchesHamlin County30.65Grant County: 30.14 inchesGrant County30.14Roberts County: 28.66 inchesRoberts County28.66Bon Homme County: 28.3 inchesBon Homme County28.3Lawrence County: 28.13 inchesLawrence County28.13Kingsbury County: 28.11 inchesKingsbury County28.11Union County: 28.04 inchesUnion County28.04Clark County: 27.96 inchesClark County27.96Ziebach County: 27.22 inchesZiebach County27.22Marshall County: 27.18 inchesMarshall County27.18Day County: 26.89 inchesDay County26.89Brookings County: 26.47 inchesBrookings County26.47Clay County: 26.29 inchesClay County26.29Dewey County: 25.88 inchesDewey County25.88Yankton County: 25.85 inchesYankton County25.85Hutchinson County: 25.76 inchesHutchinson County25.76Charles Mix County: 25.72 inchesCharles Mix County25.72Corson County: 25.64 inchesCorson County25.64Turner County: 25.41 inchesTurner County25.41Walworth County: 25.25 inchesWalworth County25.25Lake County: 25.14 inchesLake County25.14Perkins County: 24.81 inchesPerkins County24.81McCook County: 24.78 inchesMcCook County24.78Douglas County: 24.76 inchesDouglas County24.76Miner County: 24.75 inchesMiner County24.75Moody County: 24.33 inchesMoody County24.33Brown County: 24.27 inchesBrown County24.27Spink County: 24.09 inchesSpink County24.09Lincoln County: 23.88 inchesLincoln County23.88Beadle County: 23.66 inchesBeadle County23.66Gregory County: 23.5 inchesGregory County23.5Campbell County: 23.48 inchesCampbell County23.48Minnehaha County: 23.41 inchesMinnehaha County23.41Hanson County: 23.29 inchesHanson County23.29Haakon County: 23.22 inchesHaakon County23.22Davison County: 23.13 inchesDavison County23.13Aurora County: 22.87 inchesAurora County22.87Sanborn County: 22.8 inchesSanborn County22.8
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2025
inches		Change on 2024
1Deuel County32.89+15%
2Codington County30.76+16.8%
3Hamlin County30.65+8%
4Grant County30.14+15.7%
5Roberts County28.66+19.4%
6Bon Homme County28.3+6.2%
7Lawrence County28.13+38.2%
8Kingsbury County28.11+1.3%
9Union County28.04-7.8%
10Clark County27.96+11.8%
11Ziebach County27.22+78.8%
12Marshall County27.18+19.1%
13Day County26.89+18.8%
14Brookings County26.47-7.3%
15Clay County26.29-8.5%
16Dewey County25.88+64.3%
17Yankton County25.85-6.7%
18Hutchinson County25.76-11.5%
19Charles Mix County25.72+7.8%
20Corson County25.64+63.5%
21Turner County25.41-23.4%
22Walworth County25.25+59.1%
23Lake County25.14-11.1%
24Perkins County24.81+86.1%
25McCook County24.78-17.3%
26Douglas County24.76-2.5%
27Miner County24.75-6.7%
28Moody County24.33-13.3%
29Brown County24.27+21.5%
30Spink County24.09+18.7%
31Lincoln County23.88-32.6%
32Beadle County23.66+9.2%
33Gregory County23.5+6.2%
34Campbell County23.48+55.8%
35Minnehaha County23.41-24.4%
36Hanson County23.29-15.9%
37Haakon County23.22+53.3%
38Davison County23.13-13.6%
39Aurora County22.87-5.6%
40Sanborn County22.8-4.8%
41Meade County22.58+48.7%
42Jerauld County22.54+0.5%
42Stanley County22.54+37.9%
44Potter County22.51+33.6%
45Faulk County22.25+25.8%
45Hand County22.25+7.2%
47Edmunds County22.1+36.8%
48Brule County22.08-7%
49Tripp County21.97+13.1%
50Todd County21.92+25.8%
51Butte County21.77+58.1%
52McPherson County21.7+36.4%
53Harding County21.41+90.1%
54Lyman County21.09+5.7%
55Jones County21.06+20.8%
56Mellette County20.87+24.2%
57Hyde County20.65+0.9%
58Jackson County20.6+37.3%
59Pennington County20.57+37.9%
60Hughes County20.46+9.5%
61Bennett County20.32+30.5%
62Sully County20.2+15.6%
63Buffalo County19.76-14.4%
64Oglala Lakota County17.21+36.8%
65Custer County16.79+23.4%
66Fall River County14.75+24.6%

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 South Dakota by annual precipitation, 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 precipitation, counties, Counties in South Dakota by annual precipitation, 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/annual-precipitation/south-dakota-counties. 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 South Dakota by annual precipitation, 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/annual-precipitation/south-dakota-counties.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in South Dakota by annual precipitation, 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/south-dakota-counties (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_south_dakota_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in South Dakota by annual precipitation, 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/annual-precipitation/south-dakota-counties. 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 South Dakota by annual precipitation, 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/annual-precipitation/south-dakota-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/south-dakota-counties.
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?

Deuel County, with 32.89 inches in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Fall River County, with 14.75 inches 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 precipitation, counties. Retrieved 2026-10-12.

Annual precipitation: other rankings

Counties in South Dakota: more rankings