December weather forecast
West Sound, WA

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Weather in December

December, the first month of the winter in West Sound, is still a chilly month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 45.3°F (7.4°C).

Temperature

West Sound experiences its coldest period in January, February and December, averaging a high-temperature of 45.3°F (7.4°C).

Humidity

In West Sound, Washington, the average relative humidity in December is 77%.

Rainfall

In West Sound, in December, it is raining for 17.6 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 167.7 rainfall days, and 23.46" (596mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 1.3 days. Throughout December, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 6.9 snowfall days, and 3.43" (87mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 24min of daylight.
On the first day of December, sunrise is at 7:43 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:26 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

West Sound's coldest months, January, February and December, record an average high-temperature of 45.3°F (7.4°C).

What is the temperature in December?

The average high-temperature, in December, in West Sound, is 45.3°F (7.4°C), while the average low-temperature is 40.6°F (4.8°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In West Sound, during December, the rain falls for 17.6 days and regularly aggregates up to 2.95" (75mm) of precipitation.

How much does it snow in December?

In West Sound, during December, snow falls for 1.3 days and regularly aggregates up to 0.31" (8mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December in West Sound?

The average day length in December in West Sound is 8h and 22min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:43 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:26 pm PST.

What is the month with the least sunshine?

With an average of 4.1h of sunshine, December has the least sunshine of the year in West Sound.

How long on average sun shines in December in West Sound?

The average sunshine duration in December is 4.1h.

When is the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
West Sound, WA

Average temperature in December - West Sound, WA
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).

  • Average low temperature in December: 40.6°F

The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).

Average pressure in December
West Sound, WA

Average pressure in December - West Sound, WA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in December
West Sound, WA

Average wind speed in December - West Sound, WA
  • Average wind speed in December: 10.5mph

The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
West Sound, WA

Average humidity in December - West Sound, WA
  • Average humidity in December: 77%

The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
West Sound, WA

Average rainfall in December - West Sound, WA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in December
West Sound, WA

Average rainfall days in December - West Sound, WA
  • Average rainfall days in December: 17.6 days

The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).

Average snowfall in December
West Sound, WA

Average snowfall in December - West Sound, WA
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
West Sound, WA

Average snowfall days in December - West Sound, WA
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
West Sound, WA

Average daylight in December / Average sunshine in December - West Sound, WA
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

Average sunshine days in December
West Sound, WA

Average sunshine days in December - West Sound, WA
  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).

Average UV index in December
West Sound, WA

Average UV index in December - West Sound, WA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
West Sound, WA

Average cloud cover in December - West Sound, WA
  • Average cloud cover in December: 56

The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in December
West Sound, WA

Average visibility in December - West Sound, WA
  • 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).

West Sound, Washington, USA

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