January weather forecast
Pierre, SD

Share
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 represents the quintessential winter season in Pierre, South Dakota, characterized by long nights and biting cold temperatures. This month experiences the year's shortest daylight hours, averaging only 9.3 hours per day. Notably, the coldest temperatures are prevalent now, dropping to low averages of 12.6°F (-10.8°C), causing heavy layers to be a necessity. Snowfall is frequent in January, but not dominating, contributing to a bright and wintry cityscape. Outdoor activities typically include ice fishing and snowmobiling, making full use of the chilling January weather.

Temperature

January is the coldest month of the year, registering average temperatures as high as 26.2°F (-3.2°C) and as low as 12.6°F (-10.8°C).

Humidity

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

Rainfall

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

Snowfall

January through May, October through December are months with snowfall in Pierre. In January, it is snowing for 9.8 days. Throughout January, 1.97" (50mm) of snow is accumulated. 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 is 9h and 19min.
On the first day of January, 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 5:48 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.6h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is Pierre's coldest month, registering average high temperatures of 26.2°F (-3.2°C) and lows of 12.6°F (-10.8°C).

How cold is January in Pierre?

The high-temperature, in January, in Pierre, is 26.2°F (-3.2°C), while the low-temperature averages to 12.6°F (-10.8°C).

What is the most humid month?

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

What is the average humidity in January?

In January, the average relative humidity is 85%.

What is the driest month?

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 January, the rain falls for 2.7 days. Throughout January, 0.35" (9mm) of precipitation is accumulated.

How many days does it snow in January?

In January, it is snowing for 9.8 days. Throughout January, 1.97" (50mm) of snow is accumulated.

What is the average length of the day in January?

In Pierre, the average day length in January 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, sunrise is at 8:00 am and sunset at 5:48 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.6h of sunshine.

How many hours of sunshine does Pierre have in January?

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

How high is the UV index in January?

In Pierre, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
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).

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).

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).

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%).

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").

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).

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").

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).

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 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 4h and 4min

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).

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).

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).

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).

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).

Pierre, South Dakota, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location