Ranked from NOAA 1991-2020 Climate Normals
Hottest Summers in South Dakota
Average daily high in the hottest month of the year, by county. Read it next to the cooling degree days in the same row: the two together are what the summer electricity bill is actually made of. 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 | Summer high | Cooling degree days | Monthly to own |
|---|---|---|---|---|
| 1 | Oglala Lakota County | 91.0°F | 808 | $540 |
| 2 | Ziebach County | 90.2°F | 900 | $945 |
| 3 | Lyman County | 89.7°F | 929 | $1,390 |
| 4 | Mellette County | 89.6°F | 916 | $719 |
| 5 | Tripp County | 89.6°F | 1,062 | $1,233 |
| 6 | Haakon County | 89.5°F | 833 | $1,345 |
| 7 | Fall River County | 88.9°F | 694 | $1,546 |
| 8 | Hughes County | 88.3°F | 837 | $1,897 |
| 9 | Stanley County | 88.3°F | 837 | $1,549 |
| 10 | Douglas County | 88.0°F | 929 | $1,172 |
| 11 | Brule County | 87.7°F | 894 | $1,729 |
| 12 | Buffalo County | 87.7°F | 894 | $1,007 |
| 13 | Campbell County | 87.4°F | 812 | $909 |
| 14 | Charles Mix County | 87.4°F | 950 | $1,494 |
| 15 | Dewey County | 87.4°F | 812 | $805 |
| 16 | Sully County | 87.4°F | 782 | $1,680 |
| 17 | Todd County | 87.4°F | 779 | $604 |
| 18 | Bennett County | 87.3°F | 697 | $1,258 |
| 19 | Miner County | 87.3°F | 776 | $1,083 |
| 20 | Yankton County | 87.1°F | 962 | $1,797 |
| 21 | Davison County | 86.7°F | 880 | $1,677 |
| 22 | Jones County | 86.7°F | 846 | $1,110 |
| 23 | Gregory County | 86.6°F | 779 | $1,194 |
| 24 | Pennington County | 86.4°F | 607 | $2,268 |
| 25 | Perkins County | 86.2°F | 632 | $1,040 |
| 26 | Harding County | 86.1°F | 580 | $1,379 |
| 27 | Corson County | 86.0°F | 630 | $792 |
| 28 | Hyde County | 86.0°F | 718 | $1,250 |
| 29 | Sanborn County | 86.0°F | 671 | $1,285 |
| 30 | Bon Homme County | 85.8°F | 833 | $1,143 |
| 31 | Butte County | 85.8°F | 613 | $1,781 |
| 32 | Hutchinson County | 85.8°F | 891 | $1,434 |
| 33 | Beadle County | 85.7°F | 752 | $1,560 |
| 34 | Aurora County | 85.5°F | 743 | $1,192 |
| 35 | Union County | 85.5°F | 904 | $2,257 |
| 36 | Minnehaha County | 85.3°F | 847 | $2,246 |
| 37 | Turner County | 85.3°F | 847 | $1,713 |
| 38 | Meade County | 85.1°F | 517 | $2,279 |
| 39 | Brown County | 84.9°F | 630 | $1,845 |
| 40 | Hand County | 84.8°F | 653 | $1,344 |
| 41 | Faulk County | 84.5°F | 586 | $1,122 |
| 42 | Clay County | 84.4°F | 745 | $1,931 |
| 43 | Jerauld County | 84.4°F | 688 | $1,164 |
| 44 | Potter County | 84.3°F | 615 | $1,164 |
| 45 | Hanson County | 84.2°F | 626 | $1,661 |
| 46 | Spink County | 84.1°F | 617 | $1,127 |
| 47 | Walworth County | 84.1°F | 623 | $1,238 |
| 48 | Lake County | 83.3°F | 631 | $1,958 |
| 49 | Lincoln County | 83.3°F | 679 | $2,684 |
| 50 | McCook County | 83.3°F | 588 | $1,839 |
| 51 | Roberts County | 83.1°F | 566 | $1,265 |
| 52 | Edmunds County | 82.8°F | 503 | $1,424 |
| 53 | Codington County | 82.0°F | 518 | $1,859 |
| 54 | Hamlin County | 82.0°F | 518 | $1,787 |
| 55 | Marshall County | 81.8°F | 619 | $1,308 |
| 56 | Clark County | 81.7°F | 540 | $1,278 |
| 57 | Lawrence County | 81.7°F | 425 | $2,504 |
| 58 | Kingsbury County | 81.5°F | 547 | $1,411 |
| 59 | Brookings County | 81.4°F | 524 | $2,087 |
| 60 | Moody County | 81.3°F | 512 | $1,774 |
| 61 | Grant County | 81.0°F | 483 | $1,537 |
| 62 | Day County | 80.9°F | 529 | $1,382 |
| 63 | McPherson County | 80.8°F | 395 | $842 |
| 64 | Deuel County | 80.3°F | 458 | $1,538 |
| 65 | Custer County | 79.2°F | 210 | $2,603 |
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
Hottest Summers across all 3,133 US counties · Every county in South Dakota