December weather forecast
Salmon Creek, WA

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Weather in December

December, the first month of the winter in Salmon Creek, is still a chilly month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 33.4°F (0.8°C).

Temperature

December, with average temperatures reaching a high of 43.3°F (6.3°C) and a low of 33.4°F (0.8°C), is the coldest month.

Humidity

In December, the average relative humidity in Salmon Creek is 85%.

Rainfall

The months with the most rainfall in Salmon Creek are January and December, with an average 5.2" (132mm) of precipitation.

Snowfall

Months with snowfall in Salmon Creek are January through March, November and December. In Salmon Creek, during December, snow falls for 0.9 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 7.6 snowfall days, and 5" (127mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:31 am and sunset at 4:27 pm. On the last day of December, in Salmon Creek, Washington, sunrise is at 7:51 am and sunset at 4:36 pm PST.

Sunshine

In December, the average sunshine is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Salmon Creek. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Salmon Creek?

With average high temperatures of 43.3°F (6.3°C) and lows of 33.4°F (0.8°C), December is the coldest month.

How cold does it get in Salmon Creek in December?

Salmon Creek in December has an average high-temperature of 43.3°F (6.3°C) and an average low-temperature of 33.4°F (0.8°C).

What is the average humidity in December in Salmon Creek?

In Salmon Creek, the average relative humidity in December is 85%.

What is the wettest month in Salmon Creek?

The months with the most rainfall in Salmon Creek are January and December, with an average 5.2" (132mm) of precipitation.

How much does it rain in Salmon Creek in December?

In Salmon Creek, Washington, in December, it is raining for 19.8 days, with typically 5.2" (132mm) of accumulated precipitation.

How much does it snow in Salmon Creek in December?

In Salmon Creek, in December, during 0.9 snowfall days, 0.43" (11mm) of snow is typically accumulated.

What is the month with the shortest days in Salmon Creek?

The month with the shortest days in Salmon Creek, Washington, is December, with an average of 8h and 48min of daylight.

What is the average length of the day in December in Salmon Creek?

In December, the average day length in Salmon Creek, Washington, is 8h and 45min.

When are sunrise and sunset in December in Salmon Creek?

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 4:27 pm. On the last day of the month, in Salmon Creek, Washington, sunrise is at 7:51 am and sunset at 4:36 pm PST.

How many hours of sunshine does Salmon Creek have in December?

In December, the average sunshine duration in Salmon Creek, Washington, is 4.1h.

What is the month with the lowest UV index in Salmon Creek?

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

How high is the UV index in December in Salmon Creek?

In Salmon Creek, Washington, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Salmon Creek, WA

Average temperature in December - Salmon Creek, WA
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is August (53.1°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

Average pressure in December
Salmon Creek, WA

Average pressure in December - Salmon Creek, WA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in December
Salmon Creek, WA

Average wind speed in December - Salmon Creek, WA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).

Average humidity in December
Salmon Creek, WA

Average humidity in December - Salmon Creek, WA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (67%).

Average rainfall in December
Salmon Creek, WA

Average rainfall in December - Salmon Creek, WA
  • Average rainfall in December: 5.2"

The wettest months (with the highest rainfall) are January and December (5.2").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in December
Salmon Creek, WA

Average rainfall days in December - Salmon Creek, WA
  • Average rainfall days in December: 19.8 days

The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (5.1 days).

Average snowfall in December
Salmon Creek, WA

Average snowfall in December - Salmon Creek, WA
  • Average snowfall in December: 0.43"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Salmon Creek, WA

Average snowfall days in December - Salmon Creek, WA
  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Salmon Creek, WA

Average daylight in December / Average sunshine in December - Salmon Creek, WA
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in December
Salmon Creek, WA

Average sunshine days in December - Salmon Creek, WA
  • Average sunshine days in December: 9.6 days

The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in December
Salmon Creek, WA

Average UV index in December - Salmon Creek, 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
Salmon Creek, WA

Average cloud cover in December - Salmon Creek, WA
  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Salmon Creek, WA

Average visibility in December - Salmon Creek, WA
  • Average visibility in December: 5mi

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

Salmon Creek, Washington, USA

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