Temperature in South Dakota in January

Daytime highs, nighttime lows and the warmest cities in South Dakota, the United States of America this January.

South Dakota, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in January ranging from -5°C (23°F) in Watertown to 5°C (41°F) in Hot Springs. Nighttime temperatures generally drop to -9°C (16°F) in Hot Springs and -16°C (3°F) in Watertown. The month of January is in the winter season. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in South Dakota, the United States of America in January?

Discover the typical January temperatures for the most popular locations of South Dakota on the map below. Detailed insights are just a click away.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit South Dakota, check out our South Dakota's climate page.

See also: South Dakota weather by month.

Best Places to Visit in South Dakota in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across South Dakota.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in January: blue is cold, red is hot.

See all January weather averages, cities and regions in South Dakota

South Dakota temperatures in January: frequently asked questions

How hot does it get in South Dakota, the United States of America in January?

Daytime temperatures in Sioux Falls typically peak at -3°C (27°F) in January, putting it in the very low range.

How cold does it get at night in South Dakota, the United States of America in January?

After dark, Sioux Falls cools to about -14°C (7°F) on an average January night.

What is the warmest city in January in South Dakota, the United States of America?

According to our recent database analysis, Hot Springs is the warmest city. It experiences an average maximum daytime temperature of approximately 5°C (41°F) and rarely drops below -9°C (16°F) during the night.

What is the coldest city in January in South Dakota, the United States of America?

The coldest city in January in South Dakota, the United States of America is Watertown when we check our database. The maximum daytime temperatures are around -5°C (23°F) and minimum nighttime temperatures fall around -16°C (3°F).

Interested in more climate information?

We have much more information about the climate in South Dakota.

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