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Weather in South Dakota for December 2025

Your guide to South Dakota weather in December - trends and predictions

    Snow Forecast ❄️

  • 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.

    • Temperatures

  • 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.

    • 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

South Dakota 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
3°
18
Overcast
0°
19
Overcast
1°
20
Sunny
1°
21
Sunny
5°
22
Partly cloudy
3°
23
Mist
-2°
24
Partly cloudy
7°
25
Mist
10°
26
Partly cloudy
-5°
27
Sunny
5°
28
Sunny
6°
29
Patchy rain possible
5°
30
Light freezing rain
3°
31
Sunny
5°

What’s the Weather Like in South Dakota This December?

Discover the average temperatures and weather trends across South Dakota’s cities this December.
CloudySioux Falls2 °F / -5 °FCloudyRapid City5 °F / -3 °FMore Locations

Temperatures trend during December in South Dakota

See the weather trend as well as the moving average line

December weather in South Dakota 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
 3° /-3° 0 mm 0 cm
Dec. 18 Overcast
Overcast
 0° /-8° 0.8 mm 0.6 cm
Dec. 19 Overcast
Overcast
 1° /-7° 0 mm 0 cm
Dec. 20 Sunny
Sunny
 1° /-6° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 5° /-8° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
 3° /-3° 0 mm 0 cm
Dec. 23 Mist
Mist
 -2° /-7° 0 mm 0 cm
Dec. 24 Partly cloudy
Partly cloudy
 7° /1° 0 mm 0 cm
Dec. 25 Mist
Mist
 10° /-2° 0 mm 0 cm
Dec. 26 Partly cloudy
Partly cloudy
 -5° /-7° 0 mm 0 cm
Dec. 27 Sunny
Sunny
 5° /-5° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 6° /1° 0 mm 0 cm
Dec. 29 Patchy rain possible
Patchy rain possible
 5° /0° 1.6 mm 0 cm
Dec. 30 Light freezing rain
Light freezing rain
 3° /-2° 0.2 mm 0.2 cm
Dec. 31 Sunny
Sunny
 5° /-2° 0 mm 0 cm
Next
Important Notice
Our weather forecast for South Dakota 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 South Dakota forecast closer to your planned date for the most up-to-date weather information.
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South Dakota in December - FAQ

What are the expected maximum and minimum temperatures in South Dakota 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 South Dakota during December?
In December, South Dakota 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 South Dakota in December 2025?
South Dakota experiences an average snowfall of 15.905 cm during December, occurring over 5 days.
What are the typical wind conditions in South Dakota during December?
The average wind speed in South Dakota during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

South Dakota snow forecast December 2025

Track daily snowfall levels and discover South Dakota’s snowy potential this December ❄️
On average, South Dakota sees 5 snowy days during December, with approximately 15.9 cm of total snowfall.

December rainfall patterns in South Dakota

Explore the daily rainfall trends and prepare for South Dakotas December weather 💧
Typically, South Dakota has 4 rainy days in December with a total of 44.2 mm of rainfall.
Counties in South Dakota
Select a county for an accurate weather forecast
Minnehaha CountyPennington County
Top locations in South Dakota
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Rapid CitySioux Falls
More Locations

Quick links

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Location coordinates Where is South Dakota?

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.

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