December weather forecast
White, SD

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Weather in December

December, the first month of the winter in White, is also a subzero cold month, with an average temperature varying between 25.7°F (-3.5°C) and 13.6°F (-10.2°C).

Temperature

The shift from November to December brings a noticeable decrease in the average high-temperature, dropping from a cold 41.2°F (5.1°C) to a freezing cold 25.7°F (-3.5°C). Nighttime temperature in White dips to a mean of 13.6°F (-10.2°C) during December.

Humidity

In December, the average relative humidity is 86%.

Rainfall

In White, in December, it is raining for 5.1 days, with typically 1.1" (28mm) of accumulated precipitation. In White, during the entire year, the rain falls for 125.5 days and collects up to 21.65" (550mm) of precipitation.

Snowfall

Months with snowfall in White are January through May, October through December. In December, it is snowing for 13.3 days. Throughout December, 4.65" (118mm) of snow is accumulated. In White, during the entire year, snow falls for 61.5 days and aggregates up to 21.38" (543mm) of snow.

Daylight

December has the shortest days of the year in White, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:43 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:57 pm CST.

Sunshine

The average sunshine in December is 4.2h.

UV index

In White, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in White?

December temperatures vary between a high-temperature of 25.7°F (-3.5°C) and a low-temperature of 13.6°F (-10.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is computed to be 86°F (30°C).

What is the average humidity in December in White?

In December, the average relative humidity is 86%.

How many days does it rain in December in White?

In White, South Dakota, during December, the rain falls for 5.1 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How many days does it snow in December in White?

In White, South Dakota, in December, snow falls for 13.3 days, with typically accumulated 4.65" (118mm) of snow.

What is the month with the shortest days in White?

December has the shortest days of the year in White, with an average of 8h and 54min of daylight.

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

The average day length in December in White is 8h and 55min.

When are sunrise and sunset in December in White?

On the first day of December in White, South Dakota, sunrise is at 7:43 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:57 pm CST.

How many hours of sunshine does White have in December?

In December, the average sunshine duration in White is 4.2h.

How high is the UV index in December in White?

In December, the average daily maximum UV index in White, South Dakota, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to 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 December
White, SD

Average temperature in December - White, SD
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in December: 13.6°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).

Average pressure in December
White, SD

Average pressure in December - White, SD
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
White, SD

Average wind speed in December - White, SD
  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in December
White, SD

Average humidity in December - White, SD
  • Average humidity in December: 86%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).

Average rainfall in December
White, SD

Average rainfall in December - White, SD
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in December
White, SD

Average rainfall days in December - White, SD
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in December
White, SD

Average snowfall in December - White, SD
  • Average snowfall in December: 4.65"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
White, SD

Average snowfall days in December - White, SD
  • Average snowfall days in December: 13.3 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
White, SD

Average daylight in December / Average sunshine in December - White, SD
  • Average daylight in December: 8h and 5min

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 December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
White, SD

Average sunshine days in December - White, SD
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in December
White, SD

Average UV index in December - White, SD
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
White, SD

Average cloud cover in December - White, SD
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
White, SD

Average visibility in December - White, SD
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

White, South Dakota, USA

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