January weather forecast
Pierre, SD

The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park
The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park

Weather in January

January, like December, is a freezing cold winter month in Pierre, South Dakota, with an average temperature fluctuating between 12.6°F (-10.8°C) and 26.2°F (-3.2°C).

Temperature

January is the coldest month, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 12.6°F (-10.8°C).

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

Months with snowfall in Pierre are January through May, October through December. In Pierre, South Dakota, in January, snow falls for 9.8 days, with typically accumulated 1.97" (50mm) of snow. In Pierre, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.

Daylight

In January, the average length of the day in Pierre is 9h and 19min.
On the first day of January in Pierre, South Dakota, sunrise is at 8:17 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:49 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Pierre?

The coldest month in Pierre is January, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 12.6°F (-10.8°C).

What is the most humid month in Pierre?

January is the most humid month in Pierre, with an average relative humidity of 85%.

What is the average humidity in January in Pierre?

The average relative humidity in January in Pierre is 85%.

What is the driest month in Pierre?

January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 0.35" (9mm) of precipitation.

How many days does it rain in January in Pierre?

In Pierre, South Dakota, in January, during 2.7 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

How much does it snow in Pierre in January?

In Pierre, in January, during 9.8 snowfall days, 1.97" (50mm) of snow is typically accumulated.

How many hours of daylight does Pierre have in January?

In January, the average day length in Pierre is 9h and 19min.

What time are sunrise and sunset in January in Pierre?

In January, on the first day of the month, sunrise is at 8:17 am and sunset at 5:12 pm. On the last day of the month, in Pierre, South Dakota, sunrise is at 8:00 am and sunset at 5:49 pm CST.

What is the month with the least sunshine in Pierre?

With an average of 4.6h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Pierre?

In Pierre, the average sunshine duration in January is 4.6h.

What is the UV index reading in January in Pierre?

In Pierre, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Pierre, SD

Average temperature in January - Pierre, SD
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 12.6°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in January
Pierre, SD

Average pressure in January - Pierre, SD
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in January
Pierre, SD

Average wind speed in January - Pierre, SD
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in January
Pierre, SD

Average humidity in January - Pierre, SD
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in January
Pierre, SD

Average rainfall in January - Pierre, SD
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in January
Pierre, SD

Average rainfall days in January - Pierre, SD
  • Average rainfall days in January: 2.7 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in January
Pierre, SD

Average snowfall in January - Pierre, SD
  • Average snowfall in January: 1.97"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Pierre, SD

Average snowfall days in January - Pierre, SD
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Pierre, SD

Average daylight in January / Average sunshine in January - Pierre, SD
  • Average daylight in January: 9h and 19min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in January: 4h and 36min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in January
Pierre, SD

Average sunshine days in January - Pierre, SD
  • Average sunshine days in January: 19.7 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in January
Pierre, SD

Average UV index in January - Pierre, SD
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in January
Pierre, SD

Average cloud cover in January - Pierre, SD
  • Average cloud cover in January: 50

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in January
Pierre, SD

Average visibility in January - Pierre, SD
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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