December weather forecastPort Angeles, WA

The sky is dense with gray clouds, but the rising sun's rays seep through and fall on the high pier on the water in Port Angeles, Washington

December

Weather in December

December is the defining winter month in Port Angeles with a noticeable drop in sea temperature down to 46.4°F (8°C). The decrease in daylight hours and the increase in cloudy days add to the winter feel. Additionally, the slight increase in wind speeds contribute towards the chilly sensation. The prominence of snowfall marks the arrival of a white Christmas. Overall, December holds the promise of a typical picturesque winter scene.

Temperature

Port Angeles's coldest month, December, generally records average temperatures ranging from a high of 39.2°F (4°C) to a low of 31.1°F (-0.5°C).

Humidity

January and December, with an average relative humidity of 88%, are the most humid months.

Rainfall

In December, the rain falls for 19.6 days. Throughout December, 5.16" (131mm) of precipitation is accumulated. Throughout the year, in Port Angeles, there are 196.3 rainfall days, and 39.13" (994mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, in Port Angeles, it is snowing for 2.1 days. Throughout December, 0.39" (10mm) of snow is accumulated. In Port Angeles, during the entire year, snow falls for 12.2 days and aggregates up to 9.02" (229mm) of snow.

Ocean temperature

In Port Angeles, the average seawater temperature in December is 46.4°F (8°C).
Note: It is life-risking to swim in 46.4°F (8°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:43 am and sunset at 4:22 pm. On the last day of December, sunrise is at 8:03 am and sunset at 4:30 pm PST.

Sunshine

In Port Angeles, the average sunshine in December is 4.5h.

UV index

The months with the lowest UV index in Port Angeles are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

With average high temperatures of 39.2°F (4°C) and lows of 31.1°F (-0.5°C), December is the coldest month in Port Angeles.

During December, Port Angeles experiences an average high-temperature of 39.2°F (4°C) and a low-temperature of 31.1°F (-0.5°C).

January and December, with an average relative humidity of 88%, are most humid months in Port Angeles.

In Port Angeles, the average relative humidity in December is 88%.

In December, in Port Angeles, Washington, the rain falls for 19.6 days. Throughout December, 5.16" (131mm) of precipitation is accumulated.

In Port Angeles, Washington, in December, snow falls for 2.1 days, with typically accumulated 0.39" (10mm) of snow.

In Port Angeles, Washington, the average seawater temperature in December is 46.4°F (8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

December has the shortest days of the year, with an average of 8h and 24min of daylight.

In December, the average day length is 8h and 26min.

In December, on the first day of the month, sunrise is at 7:43 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:30 pm PST.

In December, the average sunshine duration in Port Angeles is 4.5h.

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

44.4°F

39.2°F

40.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.7mph

5.3mph

5.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

2.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

7.7

8.8

9.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Port Angeles, WA

Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is December (39.2°F).

Average low temperature in December: 31.1°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

Average pressure in December
Port Angeles, WA

Average pressure in December: 30.05"Hg

The months with the highest atmospheric pressure are January and July (30.06"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in December
Port Angeles, WA

Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is November (5.2mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

Average humidity in December
Port Angeles, WA

Average humidity in December: 88%

The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is July (75%).

Average rainfall in December
Port Angeles, WA

Average rainfall in December: 5.16"

The wettest month (with the highest rainfall) is January (6.54").
The driest month (with the least rainfall) is July (0.71").

Average rainfall days in December
Port Angeles, WA

Average rainfall days in December: 19.6 days

The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is August (7.3 days).

Average snowfall in December
Port Angeles, WA

Average snowfall in December: 0.39"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Port Angeles, WA

Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December
Port Angeles, WA

Average sea temperature in December: 46.4°F

The best month for swimming (with the highest average sea temperature) is September (52.7°F).
The coldest month (with the lowest average sea temperature) is February (45.2°F).

Average daylight in December /
Average sunshine in December
Port Angeles, WA

Average daylight in December: 8h and 24min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in December: 4h and 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Port Angeles, WA

Average sunshine days in December: 8.8 days

The month with the most sunshine days is August (20.5 days).
The month with the least sunshine days is March (6.3 days).

Average UV index in December
Port Angeles, WA

Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Port Angeles, WA

Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in December
Port Angeles, WA

Average visibility in December: 5mi

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