December weather forecastSalmon Creek, WA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 8h and 48min
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 6min
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: 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: 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: 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: 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).
