December weather forecast
Old Tyonek, AK

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Weather in December

December, the first month of the winter in Old Tyonek, is still a freezing cold month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 28°F (-2.2°C).

Temperature

December's onset records an average high-temperature of a subzero cold 28°F (-2.2°C), a near match to November's 32.2°F (0.1°C). During December, Old Tyonek perceives a slight decrease in temperature from daytime highs, settling at an average low of 22.5°F (-5.3°C).

Humidity

The average relative humidity in December in Old Tyonek is 81%.

Rainfall

In Old Tyonek, Alaska, during December, the rain falls for 7.3 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, in Old Tyonek, there are 128.2 rainfall days, and 20.08" (510mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Old Tyonek are January through May, October through December. The month with the most snowfall in Old Tyonek is December, when snow falls for 11.9 days and typically aggregates up to 7.91" (201mm) of snow.

Daylight

With an average of 5h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 9:50 am and sunset at 3:58 pm. On the last day of December, in Old Tyonek, Alaska, sunrise is at 10:17 am and sunset at 3:59 pm AKST.

Sunshine

The month with the least sunshine in Old Tyonek is December, with an average of 2.9h of sunshine.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Old Tyonek. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To guard against the harmful effects of the Sun, minimize exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is it in Old Tyonek in December?

The high-temperature, in December, in Old Tyonek, is 28°F (-2.2°C), while the low-temperature averages to 22.5°F (-5.3°C).

What is the average humidity in December in Old Tyonek?

The average relative humidity in December in Old Tyonek, Alaska, is 81%.

How many days does it rain in December in Old Tyonek?

In Old Tyonek, in December, during 7.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When does it snow the most in Old Tyonek?

The month with the most snowfall in Old Tyonek is December, when snow falls for 11.9 days and typically aggregates up to 7.91" (201mm) of snow.

How many days does it snow in December in Old Tyonek?

In Old Tyonek, Alaska, during December, snow falls for 11.9 days and regularly aggregates up to 7.91" (201mm) of snow.

What is the month with the shortest days in Old Tyonek?

With an average of 5h and 42min of daylight, December has the shortest days of the year in Old Tyonek.

How many hours of daylight does Old Tyonek have in December?

In December, the average day length in Old Tyonek is 5h and 41min.

What time are sunrise and sunset in December in Old Tyonek?

In December, on the first day of the month, sunrise is at 9:50 am and sunset at 3:58 pm. On the last day of the month, in Old Tyonek, sunrise is at 10:17 am and sunset at 3:59 pm AKST.

What is the month with the least sunshine in Old Tyonek?

December has the least sunshine of the year, with an average of 2.9h of sunshine.

How long on average sun shines in December in Old Tyonek?

In December, the average sunshine duration in Old Tyonek is 2.9h.

When is the lowest UV index in Old Tyonek?

With an average maximum UV index of 1, December is the month with the lowest UV index in Old Tyonek, Alaska.

What is the UV index reading in December in Old Tyonek?

In Old Tyonek, Alaska, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Old Tyonek, AK

Average temperature in December - Old Tyonek, AK
  • Average high temperature in December: 28°F

The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Old Tyonek, AK

Average pressure in December - Old Tyonek, AK
  • Average pressure in December: 29.65"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.65"Hg).

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Average wind speed in December
Old Tyonek, AK

Average wind speed in December - Old Tyonek, AK
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is December (11mph).
The calmest month (with the lowest average wind speed) is May (7.5mph).

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Average humidity in December
Old Tyonek, AK

Average humidity in December - Old Tyonek, AK
  • Average humidity in December: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in December
Old Tyonek, AK

Average rainfall in December - Old Tyonek, AK
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is June (0.71").

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Average rainfall days in December
Old Tyonek, AK

Average rainfall days in December - Old Tyonek, AK
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is September (15.6 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in December
Old Tyonek, AK

Average snowfall in December - Old Tyonek, AK
  • Average snowfall in December: 7.91"

The month with the highest snowfall is December (7.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Old Tyonek, AK

Average snowfall days in December - Old Tyonek, AK
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is December (11.9 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
Old Tyonek, AK

Average daylight in December / Average sunshine in December - Old Tyonek, AK
  • Average daylight in December: 5h and 4min

The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

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Average sunshine days in December
Old Tyonek, AK

Average sunshine days in December - Old Tyonek, AK
  • Average sunshine days in December: 13.6 days

The month with the most sunshine days is June (18.7 days).
The month with the least sunshine days is September (13.1 days).

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Average UV index in December
Old Tyonek, AK

Average UV index in December - Old Tyonek, AK
  • Average UV index in December: 1

The months with the highest UV index are 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
Old Tyonek, AK

Average cloud cover in December - Old Tyonek, AK
  • Average cloud cover in December: 57

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 40).

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Average visibility in December
Old Tyonek, AK

Average visibility in December - Old Tyonek, AK
  • 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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Old Tyonek, Alaska, USA

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