- Save 30% on Covid-19 Fit to Fly test & travel certificate
- Home Covid-19 PCR test with free express delivery
- Receive online results within 24-72 hours once test at lab
South Dakota weather in December 2021
- -2-2°C max day temperature
- 66 days with some rainfall
- -13-13°C min night temperature
- 99 hours of daylight per day
- 0No heat & humidity
- 1717 mm of monthly rainfall
- 11 (Low) UV index
Below are average maximum temperatures at popular destinations in South Dakota in December. Select a destination to see more weather parameters.
Recommended for South Dakota
The December weather guide for South Dakota (Sioux Falls) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How cold is it in South Dakota in December?
Daytime temperatures usually reach -2°C in Sioux Falls, South Dakota in December, falling to -13°C at night.
How sunny is it in South Dakota in December?
There are normally 4 hours of bright sunshine each day in Sioux Falls, South Dakota in December - that's 49% of daylight hours.
Does it rain in South Dakota in December?
There are usually 6 days with some rain in Sioux Falls, South Dakota in December and the average monthly rainfall is 17mm. Rain may fall as snow in this month.
South Dakota December sunrise & sunset times
Browse the sunrise and sunset times for South Dakota in December 2021. Select a month to view South Dakota sunrise and sunset times for the next 12 months. The South Dakota sunrise and sunset times shown below are for Sioux Falls.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st December 2021||07:40||16:52|
|Thursday, 16th December 2021||07:54||16:51|
|Friday, 31st December 2021||08:00||17:00|
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.