Sioux Falls
December
Weather in Sioux Falls for December 2025
Your guide to Sioux Falls weather in December - trends and predictions
With an average of 2 snowy days, Sioux Falls usually enjoys a light touch of snow in December.
In general, the average temperature in Sioux Falls at the beginning of December is 2.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 0.7 °F by the end of December.
With an average of 4 rainy days, Sioux Falls experiences minimal rainfall in December.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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25
Dry days
4
Rainy days
2
Snow days
4°/-3°
Temperatures
21 km/h
Avg max wind
75 %
Avg humidity
Sioux Falls in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  -1° | 2  -1° | 3  2° | 4 2° | 5  -2° | 6 6° | |
| 7 12° | 8 9° | 9  2° | 10 2° | 11  1° | 12 -5° | 13 1° |
| 14  4° | 15  3° | 16 3° | 17 2° | 18 -1° | 19 3° | 20 1° |
| 21 4° | 22 6° | 23 6° | 24  6° | 25  -1° | 26  1° | 27 1° |
| 28 3° | 29 1° | 30  1° | 31 -1° |
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Temperatures trend during December in Sioux Falls
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Mist | -1° /-10° | 0 mm | 0 cm | |
| Dec. 2 | Cloudy | -1° /-8° | 0 mm | 0 cm | |
| Dec. 3 | Freezing fog | 2° /-7° | 0 mm | 0 cm | |
| Dec. 4 | Mist | 2° /-7° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | -2° /-9° | 0.1 mm | 0.1 cm | |
| Dec. 6 | Overcast | 6° /-5° | 0 mm | 0 cm | |
| Dec. 7 | Mist | 12° /-4° | 0 mm | 0 cm | |
| Dec. 8 | Mist | 9° /-2° | 0 mm | 0 cm | |
| Dec. 9 | Moderate snow | 2° /-3° | 0.3 mm | 0.1 cm | |
| Dec. 10 | Freezing fog | 2° /-5° | 0 mm | 0 cm | |
| Dec. 11 | Sunny | 1° /-8° | 0 mm | 0 cm | |
| Dec. 12 | Overcast | -5° /-10° | 0 mm | 0 cm | |
| Dec. 13 | Sunny | 1° /-8° | 0 mm | 0 cm | |
| Dec. 14 | Partly cloudy | 4° /-4° | 3.3 mm | 2.4 cm | |
| Dec. 15 | Light rain | 3° /-1° | 1.4 mm | 0 cm | |
| Dec. 16 | Light drizzle | 3° /-1° | 0.3 mm | 0 cm | |
| Dec. 17 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 18 | Overcast | -1° /-6° | 1.2 mm | 0.9 cm | |
| Dec. 19 | Overcast | 3° /-5° | 0 mm | 0 cm | |
| Dec. 20 | Sunny | 1° /-6° | 0 mm | 0 cm | |
| Dec. 21 | Fog | 4° /-5° | 0 mm | 0 cm | |
| Dec. 22 | Fog | 6° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 6° /-2° | 2.6 mm | 0 cm | |
| Dec. 24 | Light rain shower | 6° /0° | 7.2 mm | 0 cm | |
| Dec. 25 | Moderate or heavy freezing rain | -1° /-4° | 9.1 mm | 0 cm | |
| Dec. 26 | Light snow | 1° /-7° | 0.1 mm | 0.1 cm | |
| Dec. 27 | Overcast | 1° /-4° | 3.8 mm | 2.2 cm | |
| Dec. 28 | Freezing fog | 3° /-2° | 0 mm | 0 cm | |
| Dec. 29 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 30 | Light freezing rain | 1° /-3° | 14.8 mm | 10.2 cm | |
| Dec. 31 | Partly cloudy | -1° /-5° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Sioux Falls in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sioux Falls forecast closer to your planned date for the most up-to-date weather information.
Sioux Falls in December - FAQ
What are the expected maximum and minimum temperatures in Sioux Falls during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Sioux Falls during December?
In December, Sioux Falls can expect light to moderate rainfall, totaling 41.9 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Sioux Falls in December 2025?
Sioux Falls experiences an average snowfall of 0.4 cm during December, occurring over 2 days.
What are the typical wind conditions in Sioux Falls during December?
The average wind speed in Sioux Falls during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Sioux Falls snow forecast December 2025
Track daily snowfall levels and discover Sioux Falls’s snowy potential this December ❄️
December rainfall patterns in Sioux Falls
Explore the daily rainfall trends and prepare for Sioux Fallss December weather 💧
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