December weather forecast
McKinley Park, AK

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The landscape of the famed McKinley Park in the Alaska Denali National Park
The landscape of the famed McKinley Park in the Alaska Denali National Park

Weather in December

The first month of the winter, December, is still an extremely cold month in McKinley Park, Alaska, with an average temperature varying between -4.2°F (-20.1°C) and 5.9°F (-14.5°C).

Temperature

The advent of December brings an average high-temperature of a still frigid cold 5.9°F (-14.5°C), almost identical to the preceding month. December nights experience a consistent temperature drop to a dangerously cold -4.2°F (-20.1°C).

Humidity

In McKinley Park, the average relative humidity in December is 92%.

Rainfall

In McKinley Park, in December, during 5.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In McKinley Park, Alaska, during the entire year, the rain falls for 129.7 days and collects up to 15.04" (382mm) of precipitation.

Snowfall

Months with snowfall are January through May, August through December. In McKinley Park, in December, snow falls for 15.1 days, with typically accumulated 4.57" (116mm) of snow. In McKinley Park, during the entire year, snow falls for 116.3 days and aggregates up to 42.13" (1070mm) of snow.

Daylight

December has the shortest days of the year, with an average of 4h and 36min of daylight.
On the first day of December, sunrise is at 10:09 am and sunset at 3:20 pm. On the last day of the month, sunrise is at 10:39 am and sunset at 3:18 pm AKST.

Sunshine

The month with the least sunshine is December, with an average of 3.3h of sunshine.

UV index

January through March, October and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

How cold is December?

During December, McKinley Park experiences an average high-temperature of 5.9°F (-14.5°C) and a low-temperature of -4.2°F (-20.1°C).

What is the average humidity in December?

In McKinley Park, the average relative humidity in December is 92%.

How many days does it rain in December?

In McKinley Park, in December, during 5.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How many days does it snow in December?

In McKinley Park, during December, snow falls for 15.1 days and regularly aggregates up to 4.57" (116mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 4h and 36min of daylight.

What is the average length of the day in December?

In December, the average day length is 4h and 38min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 10:09 am and sunset at 3:20 pm. On the last day of the month, sunrise is at 10:39 am and sunset at 3:18 pm AKST.

What is the month with the least sunshine in McKinley Park?

The month with the least sunshine is December, with an average of 3.3h of sunshine.

How many hours of sunshine does McKinley Park have in December?

In McKinley Park, the average sunshine duration in December is 3.3h.

When is the lowest UV index?

January through March, October and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from 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
McKinley Park, AK

Average temperature in December - McKinley Park, AK
  • Average high temperature in December: 5.9°F

The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (2.8°F).

  • Average low temperature in December: -4.2°F

The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (-8°F).

Average pressure in December
McKinley Park, AK

Average pressure in December - McKinley Park, AK
  • Average pressure in December: 29.8"Hg

The month with the highest atmospheric pressure is February (29.93"Hg).
The month with the lowest atmospheric pressure is September (29.76"Hg).

Average wind speed in December
McKinley Park, AK

Average wind speed in December - McKinley Park, AK
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is December (5.6mph).
The calmest month (with the lowest average wind speed) is June (4.7mph).

Average humidity in December
McKinley Park, AK

Average humidity in December - McKinley Park, AK
  • Average humidity in December: 92%

The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (67%).

Average rainfall in December
McKinley Park, AK

Average rainfall in December - McKinley Park, AK
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in December
McKinley Park, AK

Average rainfall days in December - McKinley Park, AK
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is June (19.9 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in December
McKinley Park, AK

Average snowfall in December - McKinley Park, AK
  • Average snowfall in December: 4.57"

The month with the highest snowfall is October (7.4").
The months with the least snowfall are June and July (0").

Average snowfall days in December
McKinley Park, AK

Average snowfall days in December - McKinley Park, AK
  • Average snowfall days in December: 15.1 days

The month with the highest number of snowfall days is March (18.8 days).
The months with the least snowfall days are June and July (0 days).

Average daylight in December /
Average sunshine in December
McKinley Park, AK

Average daylight in December / Average sunshine in December - McKinley Park, AK
  • Average daylight in December: 4h and 4min

The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 36min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

Average sunshine days in December
McKinley Park, AK

Average sunshine days in December - McKinley Park, AK
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (7.9 days).

Average UV index in December
McKinley Park, AK

Average UV index in December - McKinley Park, AK
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).

Average cloud cover in December
McKinley Park, AK

Average cloud cover in December - McKinley Park, AK
  • Average cloud cover in December: 52

The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is May (Cloud cover 41).

Average visibility in December
McKinley Park, AK

Average visibility in December - McKinley Park, AK
  • Average visibility in December: 4mi

The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January and March (3mi).

McKinley Park, Alaska, USA

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