US Geography / US Weather / South Dakota Weather / Yankton |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 27 | 32 | 44 | 60 | 72 | 82 | 87 | 85 | 75 | 64 | 46 | 31 |
| Avg. Low | 5 | 11 | 22 | 35 | 46 | 57 | 62 | 58 | 48 | 37 | 24 | 10 |
| Mean | 17 | 22 | 34 | 48 | 60 | 70 | 75 | 72 | 62 | 51 | 35 | 21 |
| Avg. Precip. | 0.4 in | 0.5 in | 1.7 in | 2.1 in | 3.6 in | 4.0 in | 3.1 in | 2.7 in | 2.3 in | 1.6 in | 1.0 in | 0.5 in |
Degrees in Fahrenheit
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