December weather forecast
Newport, WA

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Weather in December

The first month of the winter, December, is still a freezing cold month in Newport, Washington, with an average temperature fluctuating between 19.4°F (-7°C) and 29.7°F (-1.3°C).

Temperature

In Newport, the month of December is known for its lowest average temperatures, reaching a high of 29.7°F (-1.3°C) and a low of 19.4°F (-7°C).

Humidity

In Newport, the average relative humidity in December is 91%.

Rainfall

In Newport, in December, during 7 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Newport, Washington, during the entire year, the rain falls for 125.5 days and collects up to 19.92" (506mm) of precipitation.

Snowfall

Months with snowfall in Newport are January through May, September through December. In Newport, during December, snow falls for 17.8 days and regularly aggregates up to 14.17" (360mm) of snow. In Newport, during the entire year, snow falls for 81.4 days and aggregates up to 58.11" (1476mm) of snow.

Daylight

The month with the shortest days in Newport, Washington, is December, with an average of 8h and 24min of daylight.
On the first day of December in Newport, sunrise is at 7:18 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:04 pm PST.

Sunshine

The average sunshine in December in Newport is 3.4h.

UV index

The months with the lowest UV index are February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What is the coldest time of year in Newport?

December, characterized by an average high temperature of 29.7°F (-1.3°C) and a low temperature of 19.4°F (-7°C), is generally the coldest month in Newport, Washington.

How cold is December in Newport?

Newport in December has an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 19.4°F (-7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 82.4°F (28°C).

What is the average humidity in December in Newport?

In December, the average relative humidity is 91%.

How much does it rain in Newport in December?

In Newport, in December, during 7 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

How much does it snow in Newport in December?

In December, it is snowing for 17.8 days. Throughout December, 14.17" (360mm) of snow is accumulated.

What is the month with the shortest days in Newport?

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 Newport?

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

What time are sunrise and sunset in December in Newport?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 3:56 pm. On the last day of the month, in Newport, sunrise is at 7:38 am and sunset at 4:04 pm PST.

How many hours of sunshine does Newport have in December?

The average sunshine duration in December is 3.4h.

What are the months with the lowest UV index in Newport?

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

What is the UV index intensity in December in Newport?

In Newport, Washington, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from 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
Newport, WA

Average temperature in December - Newport, WA
  • Average high temperature in December: 29.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in December: 19.4°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in December
Newport, WA

Average pressure in December - Newport, WA
  • Average pressure in December: 30.18"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in December
Newport, WA

Average wind speed in December - Newport, WA
  • Average wind speed in December: 3.4mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in December
Newport, WA

Average humidity in December - Newport, WA
  • Average humidity in December: 91%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in December
Newport, WA

Average rainfall in December - Newport, WA
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in December
Newport, WA

Average rainfall days in December - Newport, WA
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is April (16.7 days).
The month with the least rainy days is August (5.8 days).

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Average snowfall in December
Newport, WA

Average snowfall in December - Newport, WA
  • Average snowfall in December: 14.17"

The month with the highest snowfall is January (16.26").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Newport, WA

Average snowfall days in December - Newport, WA
  • Average snowfall days in December: 17.8 days

The month with the highest number of snowfall days is December (17.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Newport, 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 2min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Newport, WA

Average sunshine days in December - Newport, WA
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is July (23.1 days).
The month with the least sunshine days is March (9.2 days).

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Average UV index in December
Newport, WA

Average UV index in December - Newport, WA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).

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Average cloud cover in December
Newport, WA

Average cloud cover in December - Newport, WA
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in December
Newport, WA

Average visibility in December - Newport, WA
  • Average visibility in December: 3mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).

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Newport, Washington, USA

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