December weather forecast
Swinomish Village, WA

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Weather in December

December, the first month of the winter in Swinomish Village, is also an icy month, with an average temperature ranging between max 42.6°F (5.9°C) and min 36.3°F (2.4°C).

Temperature

December, known for its average high temperature of 42.6°F (5.9°C) and an average low temperature of 36.3°F (2.4°C), is the coldest month.

Humidity

In Swinomish Village, the average relative humidity in December is 82%.

Rainfall

In Swinomish Village, during December, the rain falls for 19.5 days and regularly aggregates up to 4.06" (103mm) of precipitation. In Swinomish Village, Washington, during the entire year, the rain falls for 185.2 days and collects up to 34.72" (882mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Swinomish Village, in December, snow falls for 1.5 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, there are 9.9 snowfall days, and 7.91" (201mm) of snow is accumulated.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year in Swinomish Village.
On the first day of the month, sunrise is at 7:41 am and sunset at 4:17 pm. On the last day of December, in Swinomish Village, sunrise is at 8:01 am and sunset at 4:25 pm PST.

Sunshine

December has the least sunshine of the year in Swinomish Village, with an average of 3.9h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What are the coldest months in Swinomish Village?

December tends to be the coldest month, with temperatures averaging a daily high of 42.6°F (5.9°C) and a low of 36.3°F (2.4°C).

Is it cold in Swinomish Village during December?

The high-temperature, in December, in Swinomish Village, is 42.6°F (5.9°C), while the low-temperature averages to 36.3°F (2.4°C).

What is the average humidity in December in Swinomish Village?

In Swinomish Village, Washington, the average relative humidity in December is 82%.

How many days does it rain in December in Swinomish Village?

In Swinomish Village, Washington, during December, the rain falls for 19.5 days and regularly aggregates up to 4.06" (103mm) of precipitation.

How much does it snow in Swinomish Village in December?

In Swinomish Village, Washington, in December, during 1.5 snowfall days, 0.47" (12mm) of snow is typically accumulated.

What is the month with the shortest days in Swinomish Village?

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 Swinomish Village?

In December, the average day length in Swinomish Village, Washington, is 8h and 24min.

What time are sunrise and sunset in December in Swinomish Village?

In December, on the first day of the month, sunrise is at 7:41 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:25 pm PST.

What is the month with the least sunshine in Swinomish Village?

December has the least sunshine of the year in Swinomish Village, Washington, with an average of 3.9h of sunshine.

How many hours of sunshine does Swinomish Village have in December?

In Swinomish Village, Washington, the average sunshine duration in December is 3.9h.

When is the lowest UV index in Swinomish Village?

The months with the lowest UV index in Swinomish Village, Washington, are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Swinomish Village?

In Swinomish Village, Washington, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Swinomish Village, WA

Average temperature in December - Swinomish Village, WA
  • Average high temperature in December: 42.6°F

The warmest months (with the highest average high temperature) are July and August (68.4°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in December: 36.3°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).

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Average pressure in December
Swinomish Village, WA

Average pressure in December - Swinomish Village, WA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in December
Swinomish Village, WA

Average wind speed in December - Swinomish Village, WA
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is November (7.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in December
Swinomish Village, WA

Average humidity in December - Swinomish Village, WA
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in December
Swinomish Village, WA

Average rainfall in December - Swinomish Village, WA
  • Average rainfall in December: 4.06"

The wettest month (with the highest rainfall) is November (4.96").
The driest month (with the least rainfall) is July (0.63").

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Average rainfall days in December
Swinomish Village, WA

Average rainfall days in December - Swinomish Village, WA
  • Average rainfall days in December: 19.5 days

The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (7.2 days).

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Average snowfall in December
Swinomish Village, WA

Average snowfall in December - Swinomish Village, WA
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Swinomish Village, WA

Average snowfall days in December - Swinomish Village, WA
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Swinomish Village, WA

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

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: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

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Average sunshine days in December
Swinomish Village, WA

Average sunshine days in December - Swinomish Village, WA
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.1 days).

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Average UV index in December
Swinomish Village, WA

Average UV index in December - Swinomish Village, 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).

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Average cloud cover in December
Swinomish Village, WA

Average cloud cover in December - Swinomish Village, WA
  • Average cloud cover in December: 59

The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in December
Swinomish Village, WA

Average visibility in December - Swinomish Village, 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).

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Swinomish Village, Washington, USA

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