South Dakota weather in January 2025

Expect -4°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in South Dakota in January. Check more long-term weather averages for South Dakota in January before you book your next holiday to South Dakota in 2025/2026.

  • -4°C maximum daytime temperature in January in South Dakota (Sioux Falls)-4
    -4°C max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in January in South Dakota (Sioux Falls)7
    7 days with some rainfall
  • -16°C minimum night-time temperature in January in South Dakota (Sioux Falls)-16
    -16°C min night temperature
  • 9 hours of daylight per day in January in South Dakota (Sioux Falls)9
    9 hours of daylight per day
  • No heat & humidity in January in South Dakota (Sioux Falls)0
    No heat & humidity
  • 13 mm monthly rainfall in January in South Dakota (Sioux Falls)13
    13 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in South Dakota (Sioux Falls)1
    1 (Low) UV index

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The January 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.

Top South Dakota destinations

Below are average maximum temperatures at popular destinations in South Dakota in January. Select a destination to see more weather parameters.

All South Dakota destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How cold is it in South Dakota in January?

Daytime temperatures usually reach -4°C in Sioux Falls, South Dakota in January, falling to -16°C at night.

How sunny is it in South Dakota in January?

There are normally 6 hours of bright sunshine each day in Sioux Falls, South Dakota in January - that's 60% of daylight hours.

Does it rain in South Dakota in January?

There are usually 7 days with some rain in Sioux Falls, South Dakota in January and the average monthly rainfall is 13mm. Rain may fall as snow in this month.

South Dakota January sunrise & sunset times

Browse the sunrise and sunset times for South Dakota in January 2025. 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.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:00 17:02
Thursday, 16th January 2025 07:56 17:18
Friday, 31st January 2025 07:44 17:37

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