# Counties in South Dakota by annual precipitation, 2025

All 66 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `precipitation_annual`
- Unit: inches
- Definition: 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.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- Citation: 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.
- Web page: https://invokely.ai/rankings/annual-precipitation/south-dakota-counties

| Rank | Place | inches |
|---:|---|---:|
| 1 | Deuel County | 32.89 |
| 2 | Codington County | 30.76 |
| 3 | Hamlin County | 30.65 |
| 4 | Grant County | 30.14 |
| 5 | Roberts County | 28.66 |
| 6 | Bon Homme County | 28.3 |
| 7 | Lawrence County | 28.13 |
| 8 | Kingsbury County | 28.11 |
| 9 | Union County | 28.04 |
| 10 | Clark County | 27.96 |
| 11 | Ziebach County | 27.22 |
| 12 | Marshall County | 27.18 |
| 13 | Day County | 26.89 |
| 14 | Brookings County | 26.47 |
| 15 | Clay County | 26.29 |
| 16 | Dewey County | 25.88 |
| 17 | Yankton County | 25.85 |
| 18 | Hutchinson County | 25.76 |
| 19 | Charles Mix County | 25.72 |
| 20 | Corson County | 25.64 |
| 21 | Turner County | 25.41 |
| 22 | Walworth County | 25.25 |
| 23 | Lake County | 25.14 |
| 24 | Perkins County | 24.81 |
| 25 | McCook County | 24.78 |
| 26 | Douglas County | 24.76 |
| 27 | Miner County | 24.75 |
| 28 | Moody County | 24.33 |
| 29 | Brown County | 24.27 |
| 30 | Spink County | 24.09 |
| 31 | Lincoln County | 23.88 |
| 32 | Beadle County | 23.66 |
| 33 | Gregory County | 23.5 |
| 34 | Campbell County | 23.48 |
| 35 | Minnehaha County | 23.41 |
| 36 | Hanson County | 23.29 |
| 37 | Haakon County | 23.22 |
| 38 | Davison County | 23.13 |
| 39 | Aurora County | 22.87 |
| 40 | Sanborn County | 22.8 |
| 41 | Meade County | 22.58 |
| 42 | Jerauld County | 22.54 |
| 42 | Stanley County | 22.54 |
| 44 | Potter County | 22.51 |
| 45 | Faulk County | 22.25 |
| 45 | Hand County | 22.25 |
| 47 | Edmunds County | 22.1 |
| 48 | Brule County | 22.08 |
| 49 | Tripp County | 21.97 |
| 50 | Todd County | 21.92 |
| 51 | Butte County | 21.77 |
| 52 | McPherson County | 21.7 |
| 53 | Harding County | 21.41 |
| 54 | Lyman County | 21.09 |
| 55 | Jones County | 21.06 |
| 56 | Mellette County | 20.87 |
| 57 | Hyde County | 20.65 |
| 58 | Jackson County | 20.6 |
| 59 | Pennington County | 20.57 |
| 60 | Hughes County | 20.46 |
| 61 | Bennett County | 20.32 |
| 62 | Sully County | 20.2 |
| 63 | Buffalo County | 19.76 |
| 64 | Oglala Lakota County | 17.21 |
| 65 | Custer County | 16.79 |
| 66 | Fall River County | 14.75 |