US Geography / US Weather / South Dakota Weather / Watertown |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 21 | 26 | 38 | 56 | 68 | 78 | 84 | 82 | 71 | 58 | 40 | 25 |
| Avg. Low | 0 | 6 | 18 | 34 | 44 | 54 | 60 | 57 | 47 | 36 | 21 | 6 |
| Mean | 11 | 17 | 30 | 45 | 57 | 67 | 74 | 70 | 60 | 48 | 31 | 16 |
| Avg. Precip. | 0.5 in | 0.6 in | 1.4 in | 2.3 in | 3.0 in | 3.5 in | 3.1 in | 2.7 in | 2.0 in | 1.9 in | 0.9 in | 0.5 in |
Degrees in Fahrenheit
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