December weather forecast
Birchfield, WA

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Weather in December

The first month of the winter, December, is still a cold month in Birchfield, Washington, with an average temperature fluctuating between 25.5°F (-3.6°C) and 36.9°F (2.7°C).

Temperature

The coldest time of the year is December, with temperatures averaging a high of 36.9°F (2.7°C) and a low of 25.5°F (-3.6°C).

Humidity

In Birchfield, Washington, the average relative humidity in December is 80%.

Rainfall

In Birchfield, in December, during 9.1 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Birchfield, during the entire year, the rain falls for 82.2 days and collects up to 5.43" (138mm) of precipitation.

Snowfall

Months with snowfall are January through March, September, November and December. December is the month with the most snowfall in Birchfield. Snow falls for 5.4 days and accumulates 2.76" (70mm) 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 December in Birchfield, sunrise is at 7:26 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:24 pm PST.

Sunshine

The average sunshine in December in Birchfield, Washington, is 5.9h.

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 low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

What part of the year is the coldest in Birchfield?

Birchfield's December weather, marked by an average high temperature of 36.9°F (2.7°C) and an average low temperature of 25.5°F (-3.6°C), is the coldest in the year.

How cold is December in Birchfield?

In December, in Birchfield, the average high-temperature is 36.9°F (2.7°C), and the average low-temperature is 25.5°F (-3.6°C).

What is the average humidity in December in Birchfield?

The average relative humidity in December in Birchfield, Washington, is 80%.

How much does it rain in Birchfield in December?

In December, the rain falls for 9.1 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

When does it snow the most in Birchfield?

The month with the most snowfall in Birchfield, Washington, is December, when snow falls for 5.4 days and typically aggregates up to 2.76" (70mm) of snow.

How many days does it snow in December in Birchfield?

In Birchfield, during December, snow falls for 5.4 days and regularly aggregates up to 2.76" (70mm) of snow.

What is the month with the shortest days in Birchfield?

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

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

In December, the average day length is 8h and 38min.

When are sunrise and sunset in December in Birchfield?

On the first day of December, sunrise is at 7:26 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:24 pm PST.

How many hours of sunshine does Birchfield have in December?

The average sunshine duration in December is 5.9h.

What is the month with the lowest UV index in Birchfield?

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

What is the UV index intensity in December in Birchfield?

In December, the average daily maximum UV index in Birchfield, Washington, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Birchfield, WA

Average temperature in December - Birchfield, WA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).

Average pressure in December
Birchfield, WA

Average pressure in December - Birchfield, WA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed in December
Birchfield, WA

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

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

Average humidity in December
Birchfield, WA

Average humidity in December - Birchfield, WA
  • Average humidity in December: 80%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).

Average rainfall in December
Birchfield, WA

Average rainfall in December - Birchfield, WA
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in December
Birchfield, WA

Average rainfall days in December - Birchfield, WA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).

Average snowfall in December
Birchfield, WA

Average snowfall in December - Birchfield, WA
  • Average snowfall in December: 2.76"

The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").

Average snowfall days in December
Birchfield, WA

Average snowfall days in December - Birchfield, WA
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in December
Birchfield, WA

Average sunshine days in December - Birchfield, WA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).

Average UV index in December
Birchfield, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Birchfield, WA

Average cloud cover in December - Birchfield, WA
  • Average cloud cover in December: 37

The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).

Average visibility in December
Birchfield, WA

Average visibility in December - Birchfield, WA
  • Average visibility in December: 6mi

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

Birchfield, Washington, USA

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