Weather in South Dakota for December 2025
With an average of 5 snowy days, South Dakota usually enjoys a light touch of snow in December.
According to South Dakota snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Friday, December 26.Until now, December 2025 in South Dakota is cooler than usual, with temperatures averaging -1.4 °F, this is -2.6 °F below the typical seasonal average.
The forecast for the upcoming days in South Dakota predicts a temperature of 4.5 °F, which is slightly above the historical average.
In general, the average temperature in South Dakota at the beginning of December is 1.3 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.1 °F by the end of December.
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South Dakota Weather December
What’s the Weather Like in South Dakota This December?
Temperatures trend during December in South Dakota
December weather in South Dakota day by day
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | -1° /-10° | 0 mm | 0 cm | |
| Dec. 2 | Cloudy | 0° /-10° | 0 mm | 0 cm | |
| Dec. 3 | Freezing fog | 1° /-9° | 0 mm | 0 cm | |
| Dec. 4 | Mist | 1° /-11° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | -1° /-8° | 0 mm | 0 cm | |
| Dec. 6 | Overcast | 3° /-6° | 7.4 mm | 5.4 cm | |
| Dec. 7 | Mist | 6° /-7° | 0 mm | 0 cm | |
| Dec. 8 | Mist | 6° /-4° | 0 mm | 0 cm | |
| Dec. 9 | Moderate snow | 2° /-3° | 0.2 mm | 0.1 cm | |
| Dec. 10 | Overcast | 2° /-6° | 0 mm | 0 cm | |
| Dec. 11 | Sunny | 0° /-8° | 1.5 mm | 0.5 cm | |
| Dec. 12 | Overcast | -4° /-10° | 0 mm | 0 cm | |
| Dec. 13 | Sunny | -3° /-11° | 6.7 mm | 4.8 cm | |
| Dec. 14 | Partly cloudy | 0° /-9° | 2.2 mm | 1.6 cm | |
| Dec. 15 | Light rain | 3° /-5° | 0.9 mm | 0 cm | |
| Dec. 16 | Light drizzle | 4° /-4° | 0.2 mm | 0 cm | |
| Dec. 17 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Dec. 18 | Overcast | 0° /-8° | 0.8 mm | 0.6 cm | |
| Dec. 19 | Overcast | 1° /-7° | 0 mm | 0 cm | |
| Dec. 20 | Sunny | 1° /-6° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 5° /-8° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 3° /-3° | 0 mm | 0 cm | |
| Dec. 23 | Mist | -2° /-7° | 0 mm | 0 cm | |
| Dec. 24 | Partly cloudy | 7° /1° | 0 mm | 0 cm | |
| Dec. 25 | Mist | 10° /-2° | 0 mm | 0 cm | |
| Dec. 26 | Partly cloudy | -5° /-7° | 0 mm | 0 cm | |
| Dec. 27 | Sunny | 5° /-5° | 0 mm | 0 cm | |
| Dec. 28 | Sunny | 6° /1° | 0 mm | 0 cm | |
| Dec. 29 | Patchy rain possible | 5° /0° | 1.6 mm | 0 cm | |
| Dec. 30 | Light freezing rain | 3° /-2° | 0.2 mm | 0.2 cm | |
| Dec. 31 | Sunny | 5° /-2° | 0 mm | 0 cm | |
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South Dakota in December - FAQ
South Dakota snow forecast December 2025
December rainfall patterns in South Dakota
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Get accurate weather forecasts for South Dakota, located at latitude 43.55 and longitude -96.7. Stay updated with localized weather information tailored for South Dakota.