December weather forecast
Langford, SD

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Weather in December

The first month of the winter, December, is still a freezing cold month in Langford, South Dakota, with an average temperature ranging between min 11.5°F (-11.4°C) and max 23.2°F (-4.9°C).

Temperature

Langford's transition into December marks a considerable drop in the average high-temperature, moving down from an icy 38.8°F (3.8°C) in November to a subzero cold 23.2°F (-4.9°C). December in Langford, South Dakota, witnesses an average low-temperature hovering around an extreme cold 11.5°F (-11.4°C).

Humidity

In Langford, the average relative humidity in December is 88%.

Rainfall

In December, the rain falls for 4.1 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Langford, during the entire year, the rain falls for 112.9 days and collects up to 22.09" (561mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 14.6 days and accumulates 4.53" (115mm) 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 December, sunrise is at 7:52 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:57 pm CST.

Sunshine

In Langford, the average sunshine in December is 3.6h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Langford. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Langford in December?

December temperatures in Langford, South Dakota, vary between a high-temperature of 23.2°F (-4.9°C) and a low-temperature of 11.5°F (-11.4°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), 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 Langford?

In Langford, the average relative humidity in December is 88%.

How much does it rain in Langford in December?

In Langford, South Dakota, in December, during 4.1 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When does it snow the most in Langford?

The month with the most snowfall is December, when snow falls for 14.6 days and typically aggregates up to 4.53" (115mm) of snow.

How many days does it snow in December in Langford?

In Langford, in December, snow falls for 14.6 days, with typically accumulated 4.53" (115mm) of snow.

What is the month with the shortest days in Langford?

The month with the shortest days in Langford is December, with an average of 8h and 48min of daylight.

How many hours of daylight does Langford have in December?

In December, the average day length in Langford, South Dakota, is 8h and 46min.

When are sunrise and sunset in December in Langford?

On the first day of December, sunrise is at 7:52 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:57 pm CST.

How long on average sun shines in December in Langford?

In Langford, South Dakota, the average sunshine duration in December is 3.6h.

When is the lowest UV index in Langford?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Langford.

What is the UV index reading in December in Langford?

The average daily maximum UV index in December in Langford, South Dakota, is 1. A UV Index estimate 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
Langford, SD

Average temperature in December - Langford, SD
  • Average high temperature in December: 23.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in December: 11.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

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Average pressure in December
Langford, SD

Average pressure in December - Langford, 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
Langford, SD

Average wind speed in December - Langford, SD
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

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Average humidity in December
Langford, SD

Average humidity in December - Langford, SD
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).

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Average rainfall in December
Langford, SD

Average rainfall in December - Langford, SD
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").

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Average rainfall days in December
Langford, SD

Average rainfall days in December - Langford, SD
  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in December
Langford, SD

Average snowfall in December - Langford, SD
  • Average snowfall in December: 4.53"

The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Langford, SD

Average snowfall days in December - Langford, SD
  • Average snowfall days in December: 14.6 days

The month with the highest number of snowfall days is January (15.1 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
Langford, SD

Average daylight in December / Average sunshine in December - Langford, 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: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Langford, SD

Average sunshine days in December - Langford, SD
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).

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Average UV index in December
Langford, SD

Average UV index in December - Langford, SD
  • Average UV index in December: 1

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

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Average cloud cover in December
Langford, SD

Average cloud cover in December - Langford, SD
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in December
Langford, SD

Average visibility in December - Langford, SD
  • Average visibility in December: 5mi

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

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Langford, South Dakota, USA

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