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Weather in Sioux Falls, South Dakota for December 2025

Your guide to Sioux Falls weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 5 snowy days, Sioux Falls usually enjoys a light touch of snow in December.
    According to Sioux Falls snow forecast for December 2025, 5 snowy days are expected until the end of the month. The closest date with snow is Thursday, December 18.

    • Temperatures

  • Until now, December 2025 in Sioux Falls is cooler than usual, with temperatures averaging -1.8 °F, this is -3 °F below the typical seasonal average.

  • The forecast for the next days in Sioux Falls predicts temperatures to be around 1 °F, close to the historical average.

  • In general, the average temperature in Sioux Falls at the beginning of December is 1.3 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 1.3 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
4
Rainy days
Average snowy days
5
Snow days
Average temperatures
2°/-5°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Sioux Falls Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
-1°
2
Cloudy
-0°
3
Freezing fog
1°
4
Mist
1°
5
Overcast
-1°
6
Overcast
3°
7
Mist
6°
8
Mist
6°
9
Moderate snow
2°
10
Overcast
2°
11
Sunny
-0°
12
Overcast
-4°
13
Sunny
-3°
14
Partly cloudy
-0°
15
Light rain
3°
16
Light drizzle
4°
17
Overcast
2°
18
Moderate or heavy snow showers
1°
19
Partly cloudy
-3°
20
Freezing fog
-0°
21
Moderate or heavy snow showers
-1°
22
Partly cloudy
1°
23
Sunny
3°
24
Overcast
5°
25
Cloudy
8°
26
Sunny
7°
27
Sunny
2°
28
Light freezing rain
-1°
29
Heavy snow
-4°
30
Partly cloudy
-2°
31
Partly cloudy
-1°

Temperatures trend during December in Sioux Falls

See the weather trend as well as the moving average line

December weather in Sioux Falls day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 -1° /-10° 0 mm 0 cm
Dec. 2 Cloudy
Cloudy
 0° /-10° 0 mm 0 cm
Dec. 3 Freezing fog
Freezing fog
 1° /-9° 0 mm 0 cm
Dec. 4 Mist
Mist
 1° /-11° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 -1° /-8° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 3° /-6° 7.4 mm 5.4 cm
Dec. 7 Mist
Mist
 6° /-7° 0 mm 0 cm
Dec. 8 Mist
Mist
 6° /-4° 0 mm 0 cm
Dec. 9 Moderate snow
Moderate snow
 2° /-3° 0.2 mm 0.1 cm
Dec. 10 Overcast
Overcast
 2° /-6° 0 mm 0 cm
Dec. 11 Sunny
Sunny
 0° /-8° 1.5 mm 0.5 cm
Dec. 12 Overcast
Overcast
 -4° /-10° 0 mm 0 cm
Dec. 13 Sunny
Sunny
 -3° /-11° 6.7 mm 4.8 cm
Dec. 14 Partly cloudy
Partly cloudy
 0° /-9° 2.2 mm 1.6 cm
Dec. 15 Light rain
Light rain
 3° /-5° 0.9 mm 0 cm
Dec. 16 Light drizzle
Light drizzle
 4° /-4° 0.2 mm 0 cm
Dec. 17 Overcast
Overcast
 2° /-2° 0 mm 0 cm
Dec. 18 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-10° 3 mm 0.5 cm
Dec. 19 Partly cloudy
Partly cloudy
 -3° /-12° 0 mm 0 cm
Dec. 20 Freezing fog
Freezing fog
 0° /-4° 0 mm 0 cm
Dec. 21 Moderate or heavy snow showers
Moderate or heavy snow showers
 -1° /-5° 4.3 mm 3 cm
Dec. 22 Partly cloudy
Partly cloudy
 1° /-3° 0 mm 0 cm
Dec. 23 Sunny
Sunny
 3° /-1° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 5° /0° 0 mm 0 cm
Dec. 25 Cloudy
Cloudy
 8° /2° 0 mm 0 cm
Dec. 26 Sunny
Sunny
 7° /-1° 0 mm 0 cm
Dec. 27 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 28 Light freezing rain
Light freezing rain
 -1° /-5° 0.4 mm 0.3 cm
Dec. 29 Heavy snow
Heavy snow
 -4° /-5° 8.6 mm 4.6 cm
Dec. 30 Partly cloudy
Partly cloudy
 -2° /-5° 0.1 mm 0.1 cm
Dec. 31 Partly cloudy
Partly cloudy
 -1° /-5° 0 mm 0 cm
Next
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.
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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 2° 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 44.2 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 15.905 cm during December, occurring over 5 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 ❄️
On average, Sioux Falls sees 5 snowy days during December, with approximately 15.9 cm of total snowfall.

December rainfall patterns in Sioux Falls

Explore the daily rainfall trends and prepare for Sioux Fallss December weather 💧
Typically, Sioux Falls has 4 rainy days in December with a total of 44.2 mm of rainfall.

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Location coordinates Where is Sioux Falls?

Get accurate weather forecasts for Sioux Falls, located at latitude 43.55 and longitude -96.7. Stay updated with localized weather information tailored for Sioux Falls.

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