December weather forecast
Sheridan Beach, WA

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Weather in December

December, the first month of the winter in Sheridan Beach, is also an icy month, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 35.1°F (1.7°C).

Temperature

December proves to be the coldest month, recording an average maximum temperature of 42.6°F (5.9°C) and a minimum temperature of 35.1°F (1.7°C).

Humidity

In Sheridan Beach, the average relative humidity in December is 84%.

Rainfall

In Sheridan Beach, in December, during 15.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 166.9 rainfall days, and 21.93" (557mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Sheridan Beach, in December, during 1.1 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Sheridan Beach, during the entire year, snow falls for 6.6 days and aggregates up to 2.6" (66mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:37 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:57 am and sunset at 4:27 pm PST.

Sunshine

The months with the least sunshine are January and December, with an average of 4.4h 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. 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. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Sheridan Beach?

With average temperatures fluctuating between a high of 42.6°F (5.9°C) and a low of 35.1°F (1.7°C), December stands out as the coldest month.

Is December cold?

December temperatures vary between a high-temperature of 42.6°F (5.9°C) and a low-temperature of 35.1°F (1.7°C).

What is the average humidity in December?

In Sheridan Beach, the average relative humidity in December is 84%.

How much does it rain in December?

In Sheridan Beach, in December, during 15.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

How much does it snow in December?

In Sheridan Beach, in December, during 1.1 snowfall days, 0.24" (6mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Sheridan Beach have in December?

In Sheridan Beach, the average day length in December is 8h and 29min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:37 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:27 pm PST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 4.4h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 4.4h.

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?

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

Average temperature in December - Sheridan Beach, WA
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in December: 35.1°F

The month with the highest average low temperature is August (53.1°F).
The coldest months (with the lowest average low temperature) are February and December (35.1°F).

Average pressure in December
Sheridan Beach, WA

Average pressure in December - Sheridan Beach, WA
  • Average pressure in December: 30.08"Hg

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

Average wind speed in December
Sheridan Beach, WA

Average wind speed in December - Sheridan Beach, WA
  • Average wind speed in December: 4.9mph

The windiest months (with the highest average wind speed) are January and March (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in December
Sheridan Beach, WA

Average humidity in December - Sheridan Beach, WA
  • Average humidity in December: 84%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (71%).

Average rainfall in December
Sheridan Beach, WA

Average rainfall in December - Sheridan Beach, WA
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is January (2.87").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in December
Sheridan Beach, WA

Average rainfall days in December - Sheridan Beach, WA
  • Average rainfall days in December: 15.8 days

The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is August (6.9 days).

Average snowfall in December
Sheridan Beach, WA

Average snowfall in December - Sheridan Beach, WA
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Sheridan Beach, WA

Average snowfall days in December - Sheridan Beach, WA
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (2.5 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
Sheridan Beach, WA

Average daylight in December / Average sunshine in December - Sheridan Beach, 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 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

Average sunshine days in December
Sheridan Beach, WA

Average sunshine days in December - Sheridan Beach, WA
  • Average sunshine days in December: 12.7 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).

Average UV index in December
Sheridan Beach, WA

Average UV index in December - Sheridan Beach, WA
  • Average UV index in December: 2

The months with the highest UV index are June and 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
Sheridan Beach, WA

Average cloud cover in December - Sheridan Beach, WA
  • Average cloud cover in December: 55

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December
Sheridan Beach, WA

Average visibility in December - Sheridan Beach, WA
  • Average visibility in December: 5mi

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

Sheridan Beach, Washington, USA

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