December weather forecast
Milbank, SD

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Weather in December

As the final chapter of the year, December in Milbank, South Dakota, presents a quintessential winter with temperatures often sinking between 24.6°F (-4.1°C) and 13.1°F (-10.5°C). Traversing through this month, the probability of snowfall skyrockets compared to November. Short days are filled with soft winter sunlight and crisp, cold air. The added snow depth strengthens the festive spirit of the holiday season. Thus, December wraps up the year with its winter peak, all set to restart the cycle in the forthcoming year.

Temperature

December is characterized by a clear drop in the average high-temperature, falling from November's wintry 40.6°F (4.8°C) to a freezing cold 24.6°F (-4.1°C). During December, the temperature in Milbank is averaged to a low of 13.1°F (-10.5°C) at night.

Humidity

The average relative humidity in December is 85%.

Rainfall

In Milbank, in December, it is raining for 4.2 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 115.2 rainfall days, and 19.88" (505mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Milbank are January through May, October through December. December is the month with the most snowfall in Milbank. Snow falls for 12.7 days and accumulates 4.49" (114mm) of snow.

Daylight

With an average of 8h and 48min of daylight, December has the shortest days of the year in Milbank.
On the first day of December, sunrise is at 7:46 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:54 pm CST.

Sunshine

In Milbank, the average sunshine in December is 4.2h.

UV index

In Milbank, South Dakota, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Milbank in December?

December temperatures in Milbank, South Dakota, vary between a high-temperature of 24.6°F (-4.1°C) and a low-temperature of 13.1°F (-10.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 84.2°F (29°C).

What is the average humidity in December in Milbank?

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

How much does it rain in Milbank in December?

In Milbank, during December, the rain falls for 4.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.

What is the snowiest month in Milbank?

The month with the most snowfall in Milbank is December, when snow falls for 12.7 days and typically aggregates up to 4.49" (114mm) of snow.

How many days does it snow in December in Milbank?

In Milbank, in December, snow falls for 12.7 days, with typically accumulated 4.49" (114mm) of snow.

What is the month with the shortest days in Milbank?

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

How many hours of daylight does Milbank have in December?

In Milbank, South Dakota, the average day length in December is 8h and 49min.

When are sunrise and sunset in December in Milbank?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 4:45 pm. On the last day of the month, in Milbank, sunrise is at 8:05 am and sunset at 4:54 pm CST.

How long on average sun shines in December in Milbank?

In December, the average sunshine duration in Milbank, South Dakota, is 4.2h.

What is the UV index reading in December in Milbank?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Milbank, SD

Average temperature in December - Milbank, SD
  • Average high temperature in December: 24.6°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in December: 13.1°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

Average pressure in December
Milbank, SD

Average pressure in December - Milbank, SD
  • Average pressure in December: 30.12"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
Milbank, SD

Average wind speed in December - Milbank, SD
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in December
Milbank, SD

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

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).

Average rainfall in December
Milbank, SD

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

The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").

Average rainfall days in December
Milbank, SD

Average rainfall days in December - Milbank, SD
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in December
Milbank, SD

Average snowfall in December - Milbank, SD
  • Average snowfall in December: 4.49"

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Milbank, SD

Average snowfall days in December - Milbank, SD
  • Average snowfall days in December: 12.7 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Milbank, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Milbank, SD

Average sunshine days in December - Milbank, SD
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in December
Milbank, SD

Average UV index in December - Milbank, 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
Milbank, SD

Average cloud cover in December - Milbank, SD
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in December
Milbank, SD

Average visibility in December - Milbank, 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).

Milbank, South Dakota, USA

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