December weather forecast
Eagle Butte, SD

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Weather in December

December, the final month of the year, brings the full sweep of winter weather to Eagle Butte. With the snowfall reaching 3.31" (84mm), it is a winter wonderland, painting the town in shades of white. Despite the coldness, the weather creates a festive aura as people start gearing up for holiday celebrations. Locals press on and adapt to the colder weather, creating a sense of comradery. The end of the year in Eagle Butte is marked by white landscapes, clear chilly nights, and preparations for the coming New Year.

Temperature

The arrival of December brings a distinct temperature shift, with the average high-temperature dropping from a frosty 43.3°F (6.3°C) in November to a freezing cold 28.2°F (-2.1°C). Eagle Butte, during December nights, observes an average temperature of 16.2°F (-8.8°C).

Humidity

In Eagle Butte, the average relative humidity in December is 80%.

Rainfall

In Eagle Butte, South Dakota, during December, the rain falls for 4 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Eagle Butte, during the entire year, the rain falls for 99.7 days and collects up to 16.06" (408mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 10.4 days. Throughout December, 3.31" (84mm) of snow is accumulated. Throughout the year, in Eagle Butte, there are 58.3 snowfall days, and 22.95" (583mm) of snow is accumulated.

Daylight

With an average of 8h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:04 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:13 pm MST.

Sunshine

The average sunshine in December in Eagle Butte is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Eagle Butte. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Feb 14, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How cold is it in Eagle Butte in December?

In December, the average high-temperature and low-temperature in Eagle Butte are 28.2°F (-2.1°C) and 16.2°F (-8.8°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 86°F (30°C).

What is the average humidity in December in Eagle Butte?

In Eagle Butte, the average relative humidity in December is 80%.

How many days does it rain in December in Eagle Butte?

In Eagle Butte, South Dakota, in December, it is raining for 4 days, with typically 0.83" (21mm) of accumulated precipitation.

How many days does it snow in December in Eagle Butte?

In Eagle Butte, South Dakota, during December, snow falls for 10.4 days and regularly aggregates up to 3.31" (84mm) of snow.

What is the month with the shortest days in Eagle Butte?

With an average of 8h and 48min of daylight, December has the shortest days of the year in Eagle Butte, South Dakota.

What is the average length of the day in December in Eagle Butte?

In December, the average day length is 8h and 50min.

What time are sunrise and sunset in December in Eagle Butte?

On the first day of December, sunrise is at 7:03 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:13 pm MST.

How many hours of sunshine does Eagle Butte have in December?

In Eagle Butte, South Dakota, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Eagle Butte?

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

What is the UV index intensity in December in Eagle Butte?

In December, the average daily maximum UV index in Eagle Butte is 2. A UV Index of 2, and less, symbolizes 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
Eagle Butte, SD

Average temperature in December - Eagle Butte, SD
  • Average high temperature in December: 28.2°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 16.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure in December
Eagle Butte, SD

Average pressure in December - Eagle Butte, SD
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Eagle Butte, SD

Average wind speed in December - Eagle Butte, SD
  • Average wind speed in December: 10.9mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).

Average humidity in December
Eagle Butte, SD

Average humidity in December - Eagle Butte, SD
  • Average humidity in December: 80%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).

Average rainfall in December
Eagle Butte, SD

Average rainfall in December - Eagle Butte, SD
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in December
Eagle Butte, SD

Average rainfall days in December - Eagle Butte, SD
  • Average rainfall days in December: 4 days

The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).

Average snowfall in December
Eagle Butte, SD

Average snowfall in December - Eagle Butte, SD
  • Average snowfall in December: 3.31"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Eagle Butte, SD

Average snowfall days in December - Eagle Butte, SD
  • Average snowfall days in December: 10.4 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Eagle Butte, SD

Average daylight in December / Average sunshine in December - Eagle Butte, 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: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in December
Eagle Butte, SD

Average sunshine days in December - Eagle Butte, SD
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).

Average UV index in December
Eagle Butte, SD

Average UV index in December - Eagle Butte, SD
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Eagle Butte, SD

Average cloud cover in December - Eagle Butte, SD
  • Average cloud cover in December: 47

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

Average visibility in December
Eagle Butte, SD

Average visibility in December - Eagle Butte, 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).

Eagle Butte, South Dakota, USA

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