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

December in Aberdeen is characterized by a clear drop in the average high-temperature, falling from November's wintry 41.7°F (5.4°C) to a subzero cold 25°F (-3.9°C). Aberdeen anticipates an average minimum temperature of 12.7°F (-10.7°C) in the month of December.

Humidity

In December, the average relative humidity is 85%.

Rainfall

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

Snowfall

January through May, October through December are months with snowfall. In Aberdeen, in December, during 11.4 snowfall days, 3.43" (87mm) of snow is typically accumulated. Throughout the year, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of December, 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.

Sunshine

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

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures in Aberdeen vary between a high-temperature of 25°F (-3.9°C) and a low-temperature of 12.7°F (-10.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is appraised at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How much does it rain in December?

In Aberdeen, 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, during 11.4 snowfall days, 3.43" (87mm) 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 8h and 48min of daylight.

What is the average length of the day in December?

The average day length in December is 8h and 47min.

When is the sunrise / sunset in December?

On the first day of December, 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 many hours of sunshine does Aberdeen have in December?

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

What is the UV index reading in December?

The average daily maximum UV index in December in Aberdeen is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Aberdeen, South Dakota, USA

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