December weather forecastSatsop, WA
December
Weather in December
The first month of the winter, December, is still a chilly month in Satsop, Washington, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 33.6°F (0.9°C).Temperature
The coldest time of the year is December, with temperatures averaging a high of 43°F (6.1°C) and a low of 33.6°F (0.9°C).Humidity
With an average relative humidity of 91%, December is the most humid month in Satsop.Rainfall
In December, the rain falls for 18.2 days. Throughout December, 4.13" (105mm) of precipitation is accumulated. In Satsop, during the entire year, the rain falls for 163.5 days and collects up to 26.65" (677mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Satsop. In Satsop, in December, snow falls for 0.6 days, with typically accumulated 0.12" (3mm) of snow. In Satsop, during the entire year, snow falls for 5.4 days and aggregates up to 2.32" (59mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:39 am and sunset at 4:26 pm. On the last day of December, in Satsop, Washington, sunrise is at 7:59 am and sunset at 4:35 pm PST.
Sunshine
The month with the least sunshine in Satsop, Washington, is December, with an average of 3h 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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Satsop, WA
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is August (49.5°F).
The coldest months (with the lowest average low temperature) are February and December (33.6°F).
Average pressure in December
Satsop, WA
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are January and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in December
Satsop, WA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are January and June (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.7mph).
Average humidity in December
Satsop, WA
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Satsop, WA
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is January (4.37").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Satsop, WA
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in December
Satsop, WA
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Satsop, WA
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.3 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
Satsop, WA
- Average daylight in December: 8h and 36min
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: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Satsop, WA
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in December
Satsop, 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
Satsop, WA
- Average cloud cover in December: 70
The months with the most cloud cover are January and December (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Satsop, WA
- Average visibility in December: 3mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (4mi).
The months with the lowest visibility are November and December (3mi).





