December weather forecast
Brandon, SD

englishespañol中文
Share

Weather in December

December in Brandon is synonymous with cold winter weather. The temperatures sometimes fall to extreme lows, and the city experiences less daylight. The dominant cloud coverage of 53% results in occasional snowfall, coating the city in a beautiful winter-white blanket. The arrival of Christmas season brings a festive spirit to the city, despite the chilly weather conditions. The remarkable decrease in average temperatures marks the end of the year, and Brandon readies itself to begin the cycle anew with January.

Temperature

The average high-temperature exhibits a considerable decrease in December, dropping from a frosty 43°F (6.1°C) in November to a subzero cold 27.3°F (-2.6°C). In Brandon, December nights cool down to an average of 15.3°F (-9.3°C).

Humidity

In Brandon, the average relative humidity in December is 84%.

Rainfall

In Brandon, during December, the rain falls for 3.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 112.2 rainfall days, and 20.67" (525mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Brandon, in December, snow falls for 10 days, with typically accumulated 2.91" (74mm) of snow. In Brandon, during the entire year, snow falls for 42.1 days and aggregates up to 18.94" (481mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:40 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:59 am and sunset at 4:59 pm CST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 27.3°F (-2.6°C) and 15.3°F (-9.3°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in December?

In December, the average relative humidity is 84%.

How much does it rain in December?

In Brandon, in December, during 3.4 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Brandon, in December, during 10 snowfall days, 2.91" (74mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

What is the average length of the day in December?

In Brandon, the average day length in December is 9h and 0min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:40 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 4:59 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.3h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.

What is the UV index intensity in December in Brandon?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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 December
Brandon, SD

Average temperature in December - Brandon, SD
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in December: 15.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in December
Brandon, SD

Average pressure in December - Brandon, 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
Brandon, SD

Average wind speed in December - Brandon, SD
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in December
Brandon, SD

Average humidity in December - Brandon, SD
  • Average humidity in December: 84%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Brandon, SD

Average rainfall in December - Brandon, SD
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in December
Brandon, SD

Average rainfall days in December - Brandon, SD
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.2 days).

Average snowfall in December
Brandon, SD

Average snowfall in December - Brandon, SD
  • Average snowfall in December: 2.91"

The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Brandon, SD

Average snowfall days in December - Brandon, SD
  • Average snowfall days in December: 10 days

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

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

Average daylight in December / Average sunshine in December - Brandon, SD
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Brandon, SD

Average sunshine days in December - Brandon, SD
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in December
Brandon, SD

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in December
Brandon, SD

Average cloud cover in December - Brandon, SD
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in December
Brandon, SD

Average visibility in December - Brandon, SD
  • Average visibility in December: 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).

Brandon, South Dakota, USA

Weather forecast for your location

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