December weather forecast
Cordova, AK

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A boat-laden busy bay of Cordova, Alaska, with the view of forests and snow-peaked mountains
A boat-laden busy bay of Cordova, Alaska, with the view of forests and snow-peaked mountains

Weather in December

December in Cordova marks the height of winter with low temperatures and high snowfall. The decrease in the average temperature and sunlight duration continues, reaching their yearly minimums. Snowfall, a regular feature of December, surges to an average of 17.76" (451mm), second only to February. As January rolls in, weather typically maintains its winter character, often marked by a slight drop in averages. Overall, December enjoys a unique charm attributed to the snow-clad ambiance and the festive spirit of the holiday season.

Temperature

The advent of December brings an average high-temperature of a freezing cold 31.5°F (-0.3°C), almost identical to the preceding month. A modest nighttime temperature average of 26.2°F (-3.2°C) characterizes December.

Humidity

In Cordova, the average relative humidity in December is 81%.

Rainfall

In Cordova, in December, during 14.5 rainfall days, 8.98" (228mm) of precipitation is typically accumulated. Throughout the year, there are 191.3 rainfall days, and 72.4" (1839mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 12.9 days and typically aggregates up to 17.76" (451mm) of snow.

Ocean temperature

In Cordova, in December, the average water temperature is 44.1°F (6.7°C).
Note: Staying in 44.1°F (6.7°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.

Daylight

With an average of 5h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 9:24 am and sunset at 3:40 pm. On the last day of December, sunrise is at 9:50 am and sunset at 3:42 pm AKST.

Sunshine

December has the least sunshine of the year, with an average of 2.1h of sunshine.

UV index

November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 1 in December transforms into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

How cold is it in December?

In December, in Cordova, the average high-temperature is 31.5°F (-0.3°C), and the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How many days does it rain in December?

In December, the rain falls for 14.5 days. Throughout December, 8.98" (228mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 12.9 days and typically aggregates up to 17.76" (451mm) of snow.

How much does it snow in December?

In Cordova, in December, snow falls for 12.9 days, with typically accumulated 17.76" (451mm) of snow.

How cold is the water in December?

In Cordova, the average seawater temperature in December is 44.1°F (6.7°C). Swimming in 44.1°F (6.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days?

With an average of 5h and 54min of daylight, December has the shortest days of the year.

How many hours of daylight does Cordova have in December?

The average day length in December is 5h and 52min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 9:24 am and sunset at 3:40 pm. On the last day of the month, in Cordova, sunrise is at 9:50 am and sunset at 3:42 pm AKST.

What is the month with the least sunshine?

With an average of 2.1h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Cordova, the average sunshine duration in December is 2.1h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In Cordova, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Cordova, AK

Average temperature in December - Cordova, AK
  • Average high temperature in December: 31.5°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 (30.2°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Cordova, AK

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

The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).

Average wind speed in December
Cordova, AK

Average wind speed in December - Cordova, AK
  • Average wind speed in December: 12mph

The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).

Average humidity in December
Cordova, AK

Average humidity in December - Cordova, AK
  • Average humidity in December: 81%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).

Average rainfall in December
Cordova, AK

Average rainfall in December - Cordova, AK
  • Average rainfall in December: 8.98"

The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").

Average rainfall days in December
Cordova, AK

Average rainfall days in December - Cordova, AK
  • Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).

Average snowfall in December
Cordova, AK

Average snowfall in December - Cordova, AK
  • Average snowfall in December: 17.76"

The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cordova, AK

Average snowfall days in December - Cordova, AK
  • Average snowfall days in December: 12.9 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December
Cordova, AK

Average sea temperature in December - Cordova, AK
  • Average sea temperature in December: 44.1°F

The best month for swimming (with the highest average sea temperature) is July (57.3°F).
The coldest month (with the lowest average sea temperature) is March (39.6°F).

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

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

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in December: 2h and 1min

The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).

Average sunshine days in December
Cordova, AK

Average sunshine days in December - Cordova, AK
  • Average sunshine days in December: 9.3 days

The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).

Average UV index in December
Cordova, AK

Average UV index in December - Cordova, 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
Cordova, AK

Average cloud cover in December - Cordova, AK
  • Average cloud cover in December: 68

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).

Average visibility in December
Cordova, AK

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

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

Cordova, Alaska, USA

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