Pierre
South Dakota, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Pierre, SD

The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park, reflected in the waterfront
The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park, reflected in the waterfront
The first month of the winter, December, is also a wintry month in Pierre, South Dakota, with average temperature ranging between max 32°F (0°C) and min 12.2°F (-11°C).

Temperature

In December, the average high-temperature decreases, from a chilly 44.6°F (7°C) in November, to a wintry 32°F (0°C). In Pierre, South Dakota, in December, the average low-temperature is 12.2°F (-11°C).

Rainfall

In Pierre, it is raining for 6 days, with typically 0.4" (9mm) of accumulated precipitation. In Pierre, during the entire year, the rain falls for 87 days and collects up to 14.9" (379mm) of precipitation.

Daylight

With an average of 8.9h of daylight, December has the shortest days of the year.

Sunshine

Months with the least sunshine in Pierre are November and December, with an average of 5h of sunshine.

UV index

Months with the lowest UV index in Pierre, South Dakota, are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 1 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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for 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.

What is the temperature in December in Pierre?

In December, in Pierre, the average high-temperature is 32°F (0°C), and the average low-temperature is 12.2°F (-11°C).

How many days does it rain in December in Pierre?

In Pierre, in December, it is raining for 6 days, with typically 0.4" (9mm) of accumulated precipitation.

What is the month with the shortest days in Pierre?

The month with the shortest days in Pierre, South Dakota, is December, with an average of 8.9h of daylight.

What is the average length of the day in December in Pierre?

In Pierre, South Dakota, the average length of the day in December is 8.9h.

What is the month with the least sunshine in Pierre?

November and December, with an average of 5h of sunshine, are months with the least sunshine in Pierre.

How many hours of sunshine does Pierre have in December?

In Pierre, the average sunshine in December is 5h.

When is the lowest UV index in Pierre?

Months with the lowest UV index in Pierre, South Dakota, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Pierre?

The average daily maximum UV index in December in Pierre is 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.
Average temperature in December - Pierre, SD
  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 12°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (7°F).

Average rainfall in December - Pierre, SD
  • Average rainfall in December: 0.4"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the lowest rainfall) is January (0.2").

Average rainfall days in December - Pierre, SD
  • Average rainfall days in December: 6 days

Months with the highest number of rainy days are May and June (10 days).
Months with the lowest number of rainy days are October and November (5 days).

Average daylight in December / Average sunshine in December - Pierre, SD
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 5h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are November and December (Average sunshine: 5).

Average UV index in December - Pierre, SD
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).