December weather forecast
Longbranch, WA

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Weather in December

December, the first month of the winter in Longbranch, is also a frosty month, with an average temperature fluctuating between 34.3°F (1.3°C) and 43.7°F (6.5°C).

Temperature

Longbranch notes the coldest temperatures in December, with a high average of 43.7°F (6.5°C) and a low of 34.3°F (1.3°C).

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 87%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.4 days and accumulates 4.69" (119mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Longbranch, in December, during 1.3 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Longbranch, during the entire year, snow falls for 8.9 days and aggregates up to 5.04" (128mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 7:37 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:57 am and sunset at 4:31 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4h 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

What month is the coldest?

Longbranch experiences its lowest temperatures in December, with an average peak of 43.7°F (6.5°C) and a low of 34.3°F (1.3°C).

Is December cold?

The high-temperature, in December, in Longbranch, records 43.7°F (6.5°C), while the low-temperature is 34.3°F (1.3°C).

What are the most humid months?

January and December, with an average relative humidity of 87%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 87%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 18.4 days and accumulates 4.69" (119mm) of precipitation.

How much does it rain in December?

In Longbranch, in December, it is raining for 18.4 days, with typically 4.69" (119mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 1.3 days. Throughout December, 0.31" (8mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 8h and 36min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Longbranch, Washington, the average day length in December is 8h and 34min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:37 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:31 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4h of sunshine.

How many hours of sunshine does Longbranch have in December?

In December, the average sunshine duration in Longbranch is 4h.

What is the month with 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 intensity in December?

In Longbranch, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Longbranch, WA

Average temperature in December - Longbranch, WA
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).

Average pressure in December
Longbranch, WA

Average pressure in December - Longbranch, WA
  • Average pressure in December: 30.08"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).

Average wind speed in December
Longbranch, WA

Average wind speed in December - Longbranch, WA
  • Average wind speed in December: 4.6mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in December
Longbranch, WA

Average humidity in December - Longbranch, WA
  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).

Average rainfall in December
Longbranch, WA

Average rainfall in December - Longbranch, WA
  • Average rainfall in December: 4.69"

The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in December
Longbranch, WA

Average rainfall days in December - Longbranch, WA
  • Average rainfall days in December: 18.4 days

The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).

Average snowfall in December
Longbranch, WA

Average snowfall in December - Longbranch, WA
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Longbranch, WA

Average snowfall days in December - Longbranch, WA
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (3.2 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
Longbranch, WA

Average daylight in December / Average sunshine in December - Longbranch, WA
  • Average daylight in December: 8h and 4min

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 36min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in December
Longbranch, WA

Average sunshine days in December - Longbranch, WA
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).

Average UV index in December
Longbranch, WA

Average UV index in December - Longbranch, WA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Longbranch, WA

Average cloud cover in December - Longbranch, 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 27).

Average visibility in December
Longbranch, WA

Average visibility in December - Longbranch, WA
  • Average visibility in December: 5mi

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

Longbranch, Washington, USA

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