December weather forecast
Mission Ridge, SD

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Weather in December

December, the first month of the winter in Mission Ridge, is also a subzero cold month, with an average temperature ranging between min 16.3°F (-8.7°C) and max 28.2°F (-2.1°C).

Temperature

A clear reduction in the average high-temperature marks the arrival of December, falling from a chilly 44.2°F (6.8°C) in November to a freezing cold 28.2°F (-2.1°C). During the December nights, an average temperature of 16.3°F (-8.7°C) is observed in Mission Ridge.

Humidity

In Mission Ridge, the average relative humidity in December is 82%.

Rainfall

In Mission Ridge, during December, the rain falls for 2.9 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Mission Ridge, during the entire year, the rain falls for 98.5 days and collects up to 13.7" (348mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Mission Ridge, during December, snow falls for 8.2 days and regularly aggregates up to 2.48" (63mm) of snow. In Mission Ridge, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year in Mission Ridge.
On the first day of December, sunrise is at 7:00 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:12 pm MST.

Sunshine

In Mission Ridge, the average sunshine in December is 4.9h.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To protect against the Sun's most potent rays, avoid direct exposure around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is December in Mission Ridge?

In December, the average high-temperature and low-temperature in Mission Ridge are 28.2°F (-2.1°C) and 16.3°F (-8.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December in Mission Ridge?

In Mission Ridge, South Dakota, the average relative humidity in December is 82%.

How much does it rain in Mission Ridge in December?

In Mission Ridge, in December, it is raining for 2.9 days, with typically 0.67" (17mm) of accumulated precipitation.

How many days does it snow in December in Mission Ridge?

In Mission Ridge, South Dakota, in December, during 8.2 snowfall days, 2.48" (63mm) of snow is typically accumulated.

What is the month with the shortest days in Mission Ridge?

December has the shortest days of the year in Mission Ridge, with an average of 8h and 54min of daylight.

How many hours of daylight does Mission Ridge have in December?

The average day length in December in Mission Ridge, South Dakota, is 8h and 53min.

When is the sunrise / sunset in December in Mission Ridge?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:04 pm. On the last day of the month, in Mission Ridge, sunrise is at 7:20 am and sunset at 4:12 pm MST.

How long on average sun shines in December in Mission Ridge?

In December, the average sunshine duration in Mission Ridge is 4.9h.

When is the lowest UV index in Mission Ridge?

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December in Mission Ridge?

In Mission Ridge, South Dakota, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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
Mission Ridge, SD

Average temperature in December - Mission Ridge, SD
  • Average high temperature in December: 28.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in December: 16.3°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in December
Mission Ridge, SD

Average pressure in December - Mission Ridge, SD
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in December
Mission Ridge, SD

Average wind speed in December - Mission Ridge, SD
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in December
Mission Ridge, SD

Average humidity in December - Mission Ridge, SD
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in December
Mission Ridge, SD

Average rainfall in December - Mission Ridge, SD
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in December
Mission Ridge, SD

Average rainfall days in December - Mission Ridge, SD
  • Average rainfall days in December: 2.9 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in December
Mission Ridge, SD

Average snowfall in December - Mission Ridge, SD
  • Average snowfall in December: 2.48"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Mission Ridge, SD

Average snowfall days in December - Mission Ridge, SD
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is February (10 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
Mission Ridge, SD

Average daylight in December / Average sunshine in December - Mission Ridge, SD
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 5min

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 36min).

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Average sunshine days in December
Mission Ridge, SD

Average sunshine days in December - Mission Ridge, SD
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in December
Mission Ridge, SD

Average UV index in December - Mission Ridge, SD
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Mission Ridge, SD

Average cloud cover in December - Mission Ridge, SD
  • Average cloud cover in December: 46

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).

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Average visibility in December
Mission Ridge, SD

Average visibility in December - Mission Ridge, 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).

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Mission Ridge, South Dakota, USA

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