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
December, the first month of the winter, in Pierre, is still a cold month, with average temperature fluctuating between 32°F (0°C) and 12.2°F (-11°C).

Temperature

In Pierre, the average high-temperature drops, from a chilly 44.6°F (7°C) in November, to a cold 32°F (0°C). The average low-temperature, in Pierre, is 12.2°F (-11°C).

Rainfall

In Pierre, during December, the rain falls for 6 days and regularly aggregates up to 0.4" (9mm) of 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 in Pierre.

Sunshine

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

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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 December, in Pierre, the rain falls for 6 days. Throughout December, 0.4" (9mm) of precipitation is accumulated.

What is the month with the shortest days in Pierre?

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

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

In December, the average length of the day in Pierre, South Dakota, 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?

The average sunshine in December is 5h.

What is the month with 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.

How high is the UV index in December in Pierre?

In December, the average daily maximum UV index in Pierre, South Dakota, is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Pierre, SD
  • Average high temperature in December: 0°C

The warmest month (with the highest average high temperature) is July (32°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in December: -11°C

The month with the highest average low temperature is July (17°C).
The coldest month (with the lowest average low temperature) is January (-14°C).

Average rainfall in December - Pierre, SD
  • Average rainfall in December: 9mm

The wettest month (with the highest rainfall) is June (72mm).
The driest month (with the lowest rainfall) is January (6mm).

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).