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The weather in South Dakota in January is very cold with temperatures between -13°C and -5°C, warm clothes are a must.
South Dakota is going to be cold and wet in the month of January. Expect low temperatures and a few days of rain, so be sure to bundle up to avoid catching a cold.
South Dakota is going to experience quite a number of days of snow during January. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in South Dakota in January 2025.
If you’re planning to visit South Dakota in the near future, we highly recommend that you review the 14 day weather forecast for South Dakota before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -5° / -13° | 2 | 15 | 13 | 35 mm | Awful | South Dakota in January |
| February | -4° / -12° | 2 | 15 | 11 | 39 mm | Awful | South Dakota in February |
| March | 6° / -2° | 5 | 17 | 9 | 67 mm | Awful | South Dakota in March |
| April | 13° / 3° | 6 | 20 | 4 | 110 mm | Bad | South Dakota in April |
| May | 20° / 10° | 9 | 22 | 0 | 135 mm | Ok | South Dakota in May |
| June | 25° / 16° | 8 | 22 | 0 | 185 mm | Good | South Dakota in June |
| July | 28° / 17° | 6 | 25 | 0 | 109 mm | Perfect | South Dakota in July |
| August | 28° / 15° | 6 | 25 | 0 | 118 mm | Perfect | South Dakota in August |
| September | 24° / 12° | 5 | 25 | 0 | 94 mm | Perfect | South Dakota in September |
| October | 14° / 5° | 4 | 25 | 2 | 83 mm | Ok | South Dakota in October |
| November | 7° / -1° | 2 | 23 | 5 | 33 mm | Bad | South Dakota in November |
| December | -2° / -9° | 3 | 16 | 12 | 43 mm | Awful | South Dakota in December |