December weather forecast
Auburn, WA

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Weather in December

December ushers in the full swing of winter in Auburn, with all the associated hallmarks. Prominent among the extremes this month is the return of snowfall with an accumulation of 0.28" (7mm). The prolonged hours of darkness and limited daylight create a festive atmosphere, with sparkling lights in Auburn's streets and homes. The chilly wind blows with increased vigor, bringing the year to a close on a frigid note. Auburn's December weather adds to the magic of the holiday season, painting a snowy landscape that embodies the winter wonderland spirit.

Temperature

In Auburn, the lowest average temperatures are observed in December, with a high of 41.9°F (5.5°C) and a low of 32.5°F (0.3°C).

Humidity

January, February and December, with an average relative humidity of 86%, are the most humid months in Auburn, Washington.

Rainfall

In Auburn, Washington, in December, during 16 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Auburn, during the entire year, the rain falls for 162.5 days and collects up to 17.87" (454mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Auburn, during December, snow falls for 1.3 days and regularly aggregates up to 0.28" (7mm) of snow. Throughout the year, in Auburn, there are 8.4 snowfall days, and 2.24" (57mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of December in Auburn, sunrise is at 7:35 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:28 pm PST.

Sunshine

The months with the least sunshine in Auburn are January and December, with an average of 4.3h of sunshine.

UV index

The months with the lowest UV index in Auburn are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the coldest time of year in Auburn?

In Auburn, December is the coldest month, with temperatures averaging a high of 41.9°F (5.5°C) and a low of 32.5°F (0.3°C).

How cold is it in Auburn in December?

December temperatures in Auburn, Washington, vary between a high-temperature of 41.9°F (5.5°C) and a low-temperature of 32.5°F (0.3°C).

What are the most humid months in Auburn?

The months with the highest humidity in Auburn are January, February and December, with an average relative humidity of 86%.

What is the average humidity in December in Auburn?

The average relative humidity in December is 86%.

How much does it rain in Auburn in December?

In Auburn, in December, it is raining for 16 days, with typically 2.56" (65mm) of accumulated precipitation.

How many days does it snow in December in Auburn?

In December, it is snowing for 1.3 days. Throughout December, 0.28" (7mm) of snow is accumulated.

What is the month with the shortest days in Auburn?

December has the shortest days of the year in Auburn, with an average of 8h and 30min of daylight.

What is the average length of the day in December in Auburn?

The average day length in December in Auburn is 8h and 33min.

What time are sunrise and sunset in December in Auburn?

On the first day of December in Auburn, Washington, sunrise is at 7:35 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:28 pm PST.

What is the month with the least sunshine in Auburn?

The months with the least sunshine in Auburn are January and December, with an average of 4.3h of sunshine.

How many hours of sunshine does Auburn have in December?

In Auburn, the average sunshine duration in December is 4.3h.

When is the lowest UV index in Auburn?

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

How high is the UV index in December in Auburn?

The average daily maximum UV index in December in Auburn, Washington, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Auburn, WA

Average temperature in December - Auburn, WA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).

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Average pressure in December
Auburn, WA

Average pressure in December - Auburn, WA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in December
Auburn, WA

Average wind speed in December - Auburn, WA
  • Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in December
Auburn, WA

Average humidity in December - Auburn, WA
  • Average humidity in December: 86%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in December
Auburn, WA

Average rainfall in December - Auburn, WA
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is January (2.6").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days in December
Auburn, WA

Average rainfall days in December - Auburn, WA
  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in December
Auburn, WA

Average snowfall in December - Auburn, WA
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Auburn, WA

Average snowfall days in December - Auburn, 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).

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Average daylight in December /
Average sunshine in December
Auburn, WA

Average daylight in December / Average sunshine in December - Auburn, WA
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).

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Average sunshine days in December
Auburn, WA

Average sunshine days in December - Auburn, WA
  • Average sunshine days in December: 12.7 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in December
Auburn, WA

Average UV index in December - Auburn, 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
Auburn, WA

Average cloud cover in December - Auburn, WA
  • Average cloud cover in December: 56

The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in December
Auburn, WA

Average visibility in December - Auburn, WA
  • Average visibility in December: 4mi

The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is December (4mi).

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Auburn, Washington, USA

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