December weather forecast
West Britton, SD

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Weather in December

The first month of the winter, December, is still a freezing cold month in West Britton, South Dakota, with temperature in the range of an average high of 22.6°F (-5.2°C) and an average low of 12.2°F (-11°C).

Temperature

Witnessing a clear drop in December, the average high-temperature declines from November's icy 39.2°F (4°C) to a subzero cold 22.6°F (-5.2°C). West Britton experiences a mean temperature of 12.2°F (-11°C) during December nights.

Humidity

The average relative humidity in December in West Britton, South Dakota, is 87%.

Rainfall

In West Britton, in December, it is raining for 3.9 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in West Britton, there are 109.5 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

Snowfall

Months with snowfall in West Britton are January through May, October through December. The month with the most snowfall is December, when snow falls for 15.2 days and typically aggregates up to 4.61" (117mm) of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:52 am and sunset at 4:48 pm. On the last day of December, sunrise is at 8:12 am and sunset at 4:57 pm CST.

Sunshine

The average sunshine in December is 3.9h.

UV index

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is December in West Britton?

The average high-temperature and low-temperature in West Britton during December are 22.6°F (-5.2°C) and 12.2°F (-11°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 84.2°F (29°C).

What is the average humidity in December in West Britton?

In December, the average relative humidity in West Britton, South Dakota, is 87%.

How much does it rain in West Britton in December?

In West Britton, in December, it is raining for 3.9 days, with typically 1.02" (26mm) of accumulated precipitation.

When does it snow the most in West Britton?

December is the month with the most snowfall in West Britton. Snow falls for 15.2 days and accumulates 4.61" (117mm) of snow.

How much does it snow in West Britton in December?

In West Britton, South Dakota, during December, snow falls for 15.2 days and regularly aggregates up to 4.61" (117mm) of snow.

What is the month with the shortest days in West Britton?

With an average of 8h and 42min of daylight, December has the shortest days of the year in West Britton.

How many hours of daylight does West Britton have in December?

The average day length in December in West Britton, South Dakota, is 8h and 44min.

When are sunrise and sunset in December in West Britton?

On the first day of December in West Britton, South Dakota, sunrise is at 7:52 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 4:57 pm CST.

How many hours of sunshine does West Britton have in December?

In West Britton, the average sunshine duration in December is 3.9h.

How high is the UV index in December in West Britton?

In West Britton, the average daily maximum UV index in December 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
West Britton, SD

Average temperature in December - West Britton, SD
  • Average high temperature in December: 22.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in December: 12.2°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 (5.4°F).

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Average pressure in December
West Britton, SD

Average pressure in December - West Britton, 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
West Britton, SD

Average wind speed in December - West Britton, SD
  • Average wind speed in December: 10.3mph

The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in December
West Britton, SD

Average humidity in December - West Britton, SD
  • Average humidity in December: 87%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are August and September (62%).

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Average rainfall in December
West Britton, SD

Average rainfall in December - West Britton, SD
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in December
West Britton, SD

Average rainfall days in December - West Britton, SD
  • Average rainfall days in December: 3.9 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in December
West Britton, SD

Average snowfall in December - West Britton, SD
  • Average snowfall in December: 4.61"

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

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Average snowfall days in December
West Britton, SD

Average snowfall days in December - West Britton, SD
  • Average snowfall days in December: 15.2 days

The month with the highest number of snowfall days is January (15.3 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
West Britton, SD

Average daylight in December / Average sunshine in December - West Britton, SD
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
West Britton, SD

Average sunshine days in December - West Britton, SD
  • Average sunshine days in December: 15 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in December
West Britton, SD

Average UV index in December - West Britton, 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 and November (UV index 1).

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Average cloud cover in December
West Britton, SD

Average cloud cover in December - West Britton, SD
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in December
West Britton, SD

Average visibility in December - West Britton, SD
  • Average visibility in December: 6mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

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West Britton, South Dakota, USA

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