December weather forecast
Knik, AK

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Weather in December

The first month of the winter, December, is still a freezing cold month in Knik, Alaska, with an average temperature fluctuating between 21.7°F (-5.7°C) and 13.8°F (-10.1°C).

Temperature

The arrival of December is marked by an average high-temperature of a still subzero cold 21.7°F (-5.7°C), bearing a close resemblance to November. Knik experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 13.8°F (-10.1°C) throughout December.

Humidity

In December, the average relative humidity in Knik is 86%.

Rainfall

In Knik, in December, it is raining for 8.7 days, with typically 1.1" (28mm) of accumulated precipitation. In Knik, during the entire year, the rain falls for 137.5 days and collects up to 11.97" (304mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. December is the month with the most snowfall. Snow falls for 11.2 days and accumulates 5.67" (144mm) of snow.

Daylight

December has the shortest days of the year, with an average of 5h and 30min of daylight.
On the first day of the month, sunrise is at 9:48 am and sunset at 3:47 pm. On the last day of December, in Knik, sunrise is at 10:15 am and sunset at 3:49 pm AKST.

Sunshine

December has the least sunshine of the year in Knik, with an average of 3.8h of sunshine.

UV index

The month with the lowest UV index in Knik is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 1 during December 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. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

How cold is it in Knik in December?

Knik in December has an average high-temperature of 21.7°F (-5.7°C) and an average low-temperature of 13.8°F (-10.1°C).

What is the average humidity in December in Knik?

In December, the average relative humidity is 86%.

How much does it rain in Knik in December?

In Knik, Alaska, in December, it is raining for 8.7 days, with typically 1.1" (28mm) of accumulated precipitation.

When does it snow the most in Knik?

The month with the most snowfall in Knik is December, when snow falls for 11.2 days and typically aggregates up to 5.67" (144mm) of snow.

How many days does it snow in December in Knik?

In Knik, Alaska, during December, snow falls for 11.2 days and regularly aggregates up to 5.67" (144mm) of snow.

What is the month with the shortest days in Knik?

December has the shortest days of the year in Knik, with an average of 5h and 30min of daylight.

What is the average length of the day in December in Knik?

In December, the average day length in Knik is 5h and 33min.

What time are sunrise and sunset in December in Knik?

In December, on the first day of the month, sunrise is at 9:48 am and sunset at 3:47 pm. On the last day of the month, sunrise is at 10:15 am and sunset at 3:49 pm AKST.

What is the month with the least sunshine in Knik?

December has the least sunshine of the year in Knik, with an average of 3.8h of sunshine.

How long on average sun shines in December in Knik?

In Knik, the average sunshine duration in December is 3.8h.

What is the month with the lowest UV index in Knik?

December is the month with the lowest UV index in Knik, with an average maximum UV index of 1.

What is the UV index reading in December in Knik?

The average daily maximum UV index in December in Knik, Alaska, is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Knik, AK

Average temperature in December - Knik, AK
  • Average high temperature in December: 21.7°F

The warmest month (with the highest average high temperature) is July (64.8°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in December: 13.8°F

The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure in December
Knik, AK

Average pressure in December - Knik, AK
  • Average pressure in December: 29.68"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.68"Hg).

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Average wind speed in December
Knik, AK

Average wind speed in December - Knik, AK
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is November (4.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in December
Knik, AK

Average humidity in December - Knik, AK
  • Average humidity in December: 86%

The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (64%).

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Average rainfall in December
Knik, AK

Average rainfall in December - Knik, AK
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is September (1.77").
The driest months (with the least rainfall) are April and May (0.59").

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Average rainfall days in December
Knik, AK

Average rainfall days in December - Knik, AK
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is February (7.4 days).

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Average snowfall in December
Knik, AK

Average snowfall in December - Knik, AK
  • Average snowfall in December: 5.67"

The month with the highest snowfall is December (5.67").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Knik, AK

Average snowfall days in December - Knik, AK
  • Average snowfall days in December: 11.2 days

The month with the highest number of snowfall days is December (11.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Knik, AK

Average daylight in December / Average sunshine in December - Knik, AK
  • Average daylight in December: 5h and 3min

The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is May (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

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Average sunshine days in December
Knik, AK

Average sunshine days in December - Knik, AK
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (11.6 days).

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Average UV index in December
Knik, AK

Average UV index in December - Knik, AK
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Knik, AK

Average cloud cover in December - Knik, AK
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 38).

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Average visibility in December
Knik, AK

Average visibility in December - Knik, AK
  • Average visibility in December: 5mi

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

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Knik, Alaska, USA

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