December weather forecast
Kennebec, SD

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Weather in December

December, the first month of the winter in Kennebec, is still a freezing cold month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 16.9°F (-8.4°C).

Temperature

The transition from November to December brings a clear temperature drop, with average high-temperatures decreasing from a frosty 45.5°F (7.5°C) to a subzero cold 29.1°F (-1.6°C). Kennebec reports an average nighttime low-temperature of 16.9°F (-8.4°C) in December.

Humidity

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

Rainfall

In Kennebec, in December, it is raining for 3.9 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 107.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Kennebec, in December, during 9.6 snowfall days, 3.07" (78mm) of snow is typically accumulated. Throughout the year, in Kennebec, there are 50.9 snowfall days, and 17.87" (454mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December in Kennebec, sunrise is at 7:54 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:11 pm CST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

In Kennebec, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

How cold is it in Kennebec in December?

In December, the average high-temperature and low-temperature in Kennebec, South Dakota, are 29.1°F (-1.6°C) and 16.9°F (-8.4°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 89.6°F (32°C).

What is the average humidity in December in Kennebec?

In December, the average relative humidity is 82%.

How much does it rain in Kennebec in December?

In Kennebec, during December, the rain falls for 3.9 days and regularly aggregates up to 0.94" (24mm) of precipitation.

How much does it snow in Kennebec in December?

In Kennebec, South Dakota, in December, snow falls for 9.6 days, with typically accumulated 3.07" (78mm) of snow.

What is the month with the shortest days in Kennebec?

December has the shortest days of the year in Kennebec, with an average of 9h and 0min of daylight.

How many hours of daylight does Kennebec have in December?

In Kennebec, South Dakota, the average day length in December is 8h and 58min.

When is the sunrise / sunset in December in Kennebec?

In December, on the first day of the month, sunrise is at 7:54 am and sunset at 5:02 pm. On the last day of the month, in Kennebec, sunrise is at 8:13 am and sunset at 5:11 pm CST.

How many hours of sunshine does Kennebec have in December?

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

How high is the UV index in December in Kennebec?

In December, the average daily maximum UV index in Kennebec is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Kennebec, SD

Average temperature in December - Kennebec, SD
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in December: 16.9°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in December
Kennebec, SD

Average pressure in December - Kennebec, SD
  • Average pressure in December: 30.13"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
Kennebec, SD

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

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).

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Average humidity in December
Kennebec, SD

Average humidity in December - Kennebec, SD
  • Average humidity in December: 82%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).

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Average rainfall in December
Kennebec, SD

Average rainfall in December - Kennebec, SD
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").

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Average rainfall days in December
Kennebec, SD

Average rainfall days in December - Kennebec, SD
  • Average rainfall days in December: 3.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in December
Kennebec, SD

Average snowfall in December - Kennebec, SD
  • Average snowfall in December: 3.07"

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

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Average snowfall days in December
Kennebec, SD

Average snowfall days in December - Kennebec, SD
  • Average snowfall days in December: 9.6 days

The months with the highest number of snowfall days are January and February (11.7 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
Kennebec, SD

Average daylight in December / Average sunshine in December - Kennebec, SD
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in December
Kennebec, SD

Average sunshine days in December - Kennebec, SD
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in December
Kennebec, SD

Average UV index in December - Kennebec, SD
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Kennebec, SD

Average cloud cover in December - Kennebec, SD
  • Average cloud cover in December: 47

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in December
Kennebec, SD

Average visibility in December - Kennebec, 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).

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Kennebec, South Dakota, USA

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