December weather forecast
Aberdeen, SD

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During winter, snow cover is seen all over the area in Aberdeen City, South Dakota
During winter, snow cover is seen all over the area in Aberdeen City, South Dakota

Weather in December

December brings full-fledged winter to Aberdeen. Registering 3.43" (87mm) of snow over 11.4 days, it is a month marked with a significant amount of snowfall. Hoteliers light up fireplaces, casting a warm glow against the snow-blanketed backdrop. Nightfall arrives sooner, making for cozy evenings indoors. This last month of the year clinches a merry, white Christmas for Aberdeen.

Temperature

As December sets, the average high-temperature displays a significant decrease, moving down from a wintry 41.7°F (5.4°C) in November to a freezing cold 25°F (-3.9°C). During the month of December, the nighttime temperature in Aberdeen, South Dakota, falls to an average of 12.7°F (-10.7°C).

Humidity

In December, the average relative humidity in Aberdeen is 85%.

Rainfall

In Aberdeen, South Dakota, during December, the rain falls for 3.1 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Aberdeen, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Aberdeen, during December, snow falls for 11.4 days and regularly aggregates up to 3.43" (87mm) of snow. In Aberdeen, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:54 am and sunset at 4:52 pm. On the last day of December, sunrise is at 8:13 am and sunset at 5:00 pm CST.

Sunshine

In December, the average sunshine in Aberdeen is 4.3h.

UV index

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in Aberdeen?

Aberdeen in December has an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.7°F (-10.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86°F (30°C).

What is the average humidity in December in Aberdeen?

The average relative humidity in December in Aberdeen, South Dakota, is 85%.

How much does it rain in Aberdeen in December?

In Aberdeen, South Dakota, in December, it is raining for 3.1 days, with typically 0.87" (22mm) of accumulated precipitation.

How many days does it snow in December in Aberdeen?

In December, in Aberdeen, South Dakota, it is snowing for 11.4 days. Throughout December, 3.43" (87mm) of snow is accumulated.

What is the month with the shortest days in Aberdeen?

December has the shortest days of the year in Aberdeen, with an average of 8h and 48min of daylight.

How many hours of daylight does Aberdeen have in December?

In Aberdeen, the average day length in December is 8h and 47min.

When are sunrise and sunset in December in Aberdeen?

On the first day of December in Aberdeen, sunrise is at 7:54 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:00 pm CST.

How long on average sun shines in December in Aberdeen?

The average sunshine duration in December in Aberdeen, South Dakota, is 4.3h.

What is the UV index intensity in December in Aberdeen?

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

Average temperature in December - Aberdeen, SD
  • Average high temperature in December: 25°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

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Average pressure in December
Aberdeen, SD

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Aberdeen, SD

Average wind speed in December - Aberdeen, SD
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in December
Aberdeen, SD

Average humidity in December - Aberdeen, SD
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

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Average rainfall in December
Aberdeen, SD

Average rainfall in December - Aberdeen, SD
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in December
Aberdeen, SD

Average rainfall days in December - Aberdeen, SD
  • Average rainfall days in December: 3.1 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

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Average snowfall in December
Aberdeen, SD

Average snowfall in December - Aberdeen, SD
  • Average snowfall in December: 3.43"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Aberdeen, SD

Average snowfall days in December - Aberdeen, SD
  • Average snowfall days in December: 11.4 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Aberdeen, SD

Average sunshine days in December - Aberdeen, SD
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

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Average UV index in December
Aberdeen, SD

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

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Average cloud cover in December
Aberdeen, SD

Average cloud cover in December - Aberdeen, SD
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

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Average visibility in December
Aberdeen, SD

Average visibility in December - Aberdeen, 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).

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Aberdeen, South Dakota, USA

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