December weather forecast
Excursion Inlet, AK

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Weather in December

The first month of the winter, December, is still a freezing cold month in Excursion Inlet, Alaska, with an average temperature fluctuating between 27.3°F (-2.6°C) and 31.8°F (-0.1°C).

Temperature

As Excursion Inlet transitions into December, the average high-temperature stands at a freezing cold 31.8°F (-0.1°C), offering little variation from the preceding month. A consistent average low of 27.3°F (-2.6°C) is noted throughout December, only a small step down from its daytime high.

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Excursion Inlet, during December, the rain falls for 12.8 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, there are 182.7 rainfall days, and 37.4" (950mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Excursion Inlet, in December, during 11.9 snowfall days, 11.18" (284mm) of snow is typically accumulated. In Excursion Inlet, during the entire year, snow falls for 60.8 days and aggregates up to 53.78" (1366mm) of snow.

Daylight

December has the shortest days of the year, with an average of 6h and 30min of daylight.
On the first day of December, sunrise is at 8:26 am and sunset at 3:16 pm. On the last day of the month, sunrise is at 8:50 am and sunset at 3:20 pm AKST.

Sunshine

January and December, with an average of 2.9h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index in Excursion Inlet are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 1 in December transforms into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 31.8°F (-0.1°C) and 27.3°F (-2.6°C) respectively.

What is the average humidity in December in Excursion Inlet?

In Excursion Inlet, the average relative humidity in December is 87%.

How many days does it rain in December?

In Excursion Inlet, in December, it is raining for 12.8 days, with typically 3.58" (91mm) of accumulated precipitation.

How much does it snow in December?

In Excursion Inlet, during December, snow falls for 11.9 days and regularly aggregates up to 11.18" (284mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 6h and 30min of daylight.

How many hours of daylight does Excursion Inlet have in December?

In Excursion Inlet, the average day length in December is 6h and 29min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 8:26 am and sunset at 3:16 pm. On the last day of the month, sunrise is at 8:50 am and sunset at 3:20 pm AKST.

What is the month with the least sunshine?

January and December, with an average of 2.9h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 2.9h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Excursion Inlet, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes 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
Excursion Inlet, AK

Average temperature in December - Excursion Inlet, AK
  • Average high temperature in December: 31.8°F

The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).

Average pressure in December
Excursion Inlet, AK

Average pressure in December - Excursion Inlet, AK
  • Average pressure in December: 29.83"Hg

The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).

Average wind speed in December
Excursion Inlet, AK

Average wind speed in December - Excursion Inlet, AK
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

Average humidity in December
Excursion Inlet, AK

Average humidity in December - Excursion Inlet, AK
  • Average humidity in December: 87%

The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).

Average rainfall in December
Excursion Inlet, AK

Average rainfall in December - Excursion Inlet, AK
  • Average rainfall in December: 3.58"

The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").

Average rainfall days in December
Excursion Inlet, AK

Average rainfall days in December - Excursion Inlet, AK
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Excursion Inlet, AK

Average snowfall in December - Excursion Inlet, AK
  • Average snowfall in December: 11.18"

The month with the highest snowfall is January (11.22").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Excursion Inlet, AK

Average snowfall days in December - Excursion Inlet, AK
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Excursion Inlet, AK

Average daylight in December / Average sunshine in December - Excursion Inlet, AK
  • Average daylight in December: 6h and 3min

The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

Average sunshine days in December
Excursion Inlet, AK

Average sunshine days in December - Excursion Inlet, AK
  • Average sunshine days in December: 10.5 days

The months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).

Average UV index in December
Excursion Inlet, AK

Average UV index in December - Excursion Inlet, AK
  • Average UV index in December: 1

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

Average cloud cover in December
Excursion Inlet, AK

Average cloud cover in December - Excursion Inlet, AK
  • Average cloud cover in December: 70

The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).

Average visibility in December
Excursion Inlet, AK

Average visibility in December - Excursion Inlet, AK
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).

Excursion Inlet, Alaska, USA

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