Ranked from NOAA 1991-2020 Climate Normals
Wettest Counties in South Dakota
Total annual precipitation by county, wettest first. Rainfall drives roof and siding wear, basement water, and in much of the country the flood component of the insurance premium. Figures are NOAA 1991-2020 Climate Normals from the weather station nearest each county seat, so they describe a thirty-year average rather than any single year.
South Dakota ranked
| # | County | Annual rainfall | FEMA risk rating | Median home |
|---|---|---|---|---|
| 1 | Lawrence County | 31.8" | Relatively Low | $310,800 |
| 2 | Yankton County | 28.7" | Relatively Low | $208,200 |
| 3 | Moody County | 28.5" | Very Low | $206,300 |
| 4 | Union County | 28.0" | Very Low | $269,500 |
| 5 | Minnehaha County | 27.9" | Relatively Moderate | $266,600 |
| 6 | Turner County | 27.9" | Very Low | $199,000 |
| 7 | Lincoln County | 27.8" | Relatively Low | $323,500 |
| 8 | Deuel County | 27.5" | Very Low | $180,100 |
| 9 | McCook County | 26.9" | Relatively Low | $217,300 |
| 10 | Clay County | 26.9" | Very Low | $221,800 |
| 11 | Gregory County | 26.7" | Very Low | $129,000 |
| 12 | Lake County | 26.4" | Very Low | $231,000 |
| 13 | Miner County | 26.4" | Very Low | $114,100 |
| 14 | Bon Homme County | 26.2" | Very Low | $120,300 |
| 15 | Day County | 26.1" | Very Low | $155,100 |
| 16 | Kingsbury County | 25.9" | Very Low | $159,600 |
| 17 | Jerauld County | 25.7" | Very Low | $127,000 |
| 18 | Grant County | 25.4" | Very Low | $179,400 |
| 19 | Douglas County | 25.4" | Very Low | $125,000 |
| 20 | Hanson County | 25.3" | Very Low | $192,400 |
| 21 | Brookings County | 25.2" | Relatively Low | $246,300 |
| 22 | Hutchinson County | 25.0" | Relatively Low | $160,500 |
| 23 | Marshall County | 25.0" | Very Low | $147,200 |
| 24 | Sanborn County | 24.6" | Very Low | $138,500 |
| 25 | Clark County | 24.4" | Very Low | $141,900 |
| 26 | Charles Mix County | 24.4" | Relatively Low | $169,200 |
| 27 | Aurora County | 23.9" | Very Low | $129,000 |
| 28 | Beadle County | 23.3" | Relatively Low | $178,400 |
| 29 | Roberts County | 22.9" | Very Low | $139,100 |
| 30 | Hyde County | 22.8" | Very Low | $134,500 |
| 31 | Spink County | 22.8" | Very Low | $117,400 |
| 32 | Codington County | 22.7" | Relatively Low | $218,000 |
| 33 | Hamlin County | 22.7" | Very Low | $207,700 |
| 34 | Hand County | 22.3" | Very Low | $152,100 |
| 35 | Faulk County | 22.0" | Very Low | $124,100 |
| 36 | Brown County | 21.8" | Relatively Low | $212,900 |
| 37 | Jones County | 21.6" | Very Low | $117,100 |
| 38 | Edmunds County | 21.4" | Very Low | $163,600 |
| 39 | Davison County | 21.1" | Very Low | $190,000 |
| 40 | Sully County | 21.1" | Very Low | $198,700 |
| 41 | Todd County | 20.9" | Very Low | $45,200 |
| 42 | Lyman County | 20.8" | Very Low | $156,500 |
| 43 | Bennett County | 20.7" | Very Low | $138,600 |
| 44 | Mellette County | 20.4" | Very Low | $63,000 |
| 45 | Brule County | 20.4" | Relatively Low | $205,500 |
| 46 | Buffalo County | 20.4" | Very Low | $108,000 |
| 47 | Hughes County | 20.2" | Very Low | $221,100 |
| 48 | Stanley County | 20.2" | Very Low | $169,900 |
| 49 | Potter County | 20.2" | Very Low | $121,300 |
| 50 | McPherson County | 19.9" | Very Low | $78,400 |
| 51 | Custer County | 19.8" | Very Low | $327,200 |
| 52 | Tripp County | 19.4" | Very Low | $137,100 |
| 53 | Walworth County | 19.2" | Very Low | $130,000 |
| 54 | Meade County | 18.9" | Relatively Low | $274,800 |
| 55 | Ziebach County | 18.9" | Very Low | $101,700 |
| 56 | Perkins County | 18.1" | Very Low | $105,900 |
| 57 | Campbell County | 18.0" | Very Low | $87,900 |
| 58 | Dewey County | 18.0" | Relatively Low | $75,400 |
| 59 | Fall River County | 17.9" | Very Low | $176,300 |
| 60 | Pennington County | 17.4" | Relatively Low | $270,400 |
| 61 | Corson County | 17.3" | Very Low | $73,800 |
| 62 | Butte County | 16.6" | Very Low | $207,700 |
| 63 | Haakon County | 16.3" | Very Low | $153,200 |
| 64 | Oglala Lakota County | 15.2" | Relatively Low | $45,600 |
| 65 | Harding County | 13.4" | Very Low | $156,400 |
Every figure is modelled on the county's own median home with 20% down at 7.03%. Property tax and electricity are county and state specific; homeowners insurance uses the NAIC average premium for that state, which ranges from 0.16% of home value in Hawaii to 1.16% in Oklahoma. Maintenance and water are national estimates. Full methodology.
Nationwide
Wettest Counties across all 3,133 US counties · Every county in South Dakota