December weather forecast
Belfair, WA

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Weather in December

December, the first month of the winter in Belfair, is also an icy month, with an average temperature varying between 33.8°F (1°C) and 42.3°F (5.7°C).

Temperature

December is the month when Belfair sees the lowest average temperatures, with a high of 42.3°F (5.7°C) and a low of 33.8°F (1°C).

Humidity

With an average relative humidity of 88%, December is the most humid month.

Rainfall

December is the month with the most rainfall. Rain falls for 18.3 days and accumulates 5" (127mm) of precipitation.

Snowfall

Months with snowfall in Belfair are January through April, November and December. In Belfair, during December, snow falls for 2.6 days and regularly aggregates up to 0.83" (21mm) of snow. In Belfair, during the entire year, snow falls for 12.1 days and aggregates up to 7.05" (179mm) of snow.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:38 am and sunset at 4:22 pm. On the last day of December, in Belfair, sunrise is at 7:58 am and sunset at 4:30 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 3.8h 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 radiation for the average person.
Note: In December, the maximum UV index of 2 suggests this 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. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Belfair?

Temperature readings in Belfair, Washington, reach their annual highs in December, averaging 42.3°F (5.7°C) and a minimum average of 33.8°F (1°C).

How cold does it get in Belfair in December?

The high-temperature in Belfair, Washington, during December is 42.3°F (5.7°C) and the low-temperature is 33.8°F (1°C).

What is the most humid month in Belfair?

The most humid month in Belfair, Washington, is December, with an average relative humidity of 88%.

What is the average humidity in December in Belfair?

The average relative humidity in December in Belfair, Washington, is 88%.

What is the rainiest month in Belfair?

The month with the most rainfall is December, when the rain falls for 18.3 days and typically aggregates up to 5" (127mm) of precipitation.

How many days does it rain in December in Belfair?

In Belfair, during December, the rain falls for 18.3 days and regularly aggregates up to 5" (127mm) of precipitation.

How much does it snow in Belfair in December?

In Belfair, Washington, in December, snow falls for 2.6 days, with typically accumulated 0.83" (21mm) of snow.

What is the month with the shortest days in Belfair?

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

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

The average day length in December in Belfair, Washington, is 8h and 32min.

What time are sunrise and sunset in December in Belfair?

In December, on the first day of the month, sunrise is at 7:38 am and sunset at 4:22 pm. On the last day of the month, in Belfair, sunrise is at 7:58 am and sunset at 4:30 pm PST.

What is the month with the least sunshine in Belfair?

With an average of 3.8h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Belfair have in December?

The average sunshine duration in December in Belfair is 3.8h.

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

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

What is the UV index reading in December in Belfair?

In December, the average daily maximum UV index in Belfair, Washington, is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe 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
Belfair, WA

Average temperature in December - Belfair, WA
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in December: 33.8°F

The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).

Average pressure in December
Belfair, WA

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

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in December
Belfair, WA

Average wind speed in December - Belfair, WA
  • Average wind speed in December: 4.4mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

Average humidity in December
Belfair, WA

Average humidity in December - Belfair, WA
  • Average humidity in December: 88%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is July (69%).

Average rainfall in December
Belfair, WA

Average rainfall in December - Belfair, WA
  • Average rainfall in December: 5"

The wettest month (with the highest rainfall) is December (5").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in December
Belfair, WA

Average rainfall days in December - Belfair, WA
  • Average rainfall days in December: 18.3 days

The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (6 days).

Average snowfall in December
Belfair, WA

Average snowfall in December - Belfair, WA
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Belfair, WA

Average snowfall days in December - Belfair, WA
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (3.8 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
Belfair, WA

Average daylight in December / Average sunshine in December - Belfair, 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: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

Average sunshine days in December
Belfair, WA

Average sunshine days in December - Belfair, WA
  • Average sunshine days in December: 10.2 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.7 days).

Average UV index in December
Belfair, WA

Average UV index in December - Belfair, 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
Belfair, WA

Average cloud cover in December - Belfair, WA
  • Average cloud cover in December: 60

The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in December
Belfair, WA

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

The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, November and December (4mi).

Belfair, Washington, USA

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