Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The coldest temperatures occur during December, when averages reach a peak of 43.5°F (6.4°C) and a low of 36.5°F (2.5°C).Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 84%.Rainfall
In Suquamish, in December, during 17.1 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Suquamish, during the entire year, the rain falls for 169.8 days and collects up to 22.44" (570mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Suquamish, in December, during 1.1 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Suquamish, during the entire year, snow falls for 8.9 days and aggregates up to 4.61" (117mm) of snow.Ocean temperature
In December, the average ocean temperature is 46.6°F (8.1°C).Note: With the appropriate swimsuit, one can swim in 46.6°F (8.1°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:38 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:58 am and sunset at 4:28 pm PST.
Sunshine
The month with the least sunshine in Suquamish is December, with an average of 4.6h 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 hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Suquamish?
Is December cold in Suquamish?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December in Suquamish?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December in Suquamish?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Suquamish, WA
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is August (73.8°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (36.5°F).
Average pressure in December
Suquamish, WA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in December
Suquamish, WA
- Average wind speed in December: 5.6mph
The windiest months (with the highest average wind speed) are March and November (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (3.7mph).
Average humidity in December
Suquamish, WA
- Average humidity in December: 84%
The months with the highest relative humidity are January, February, November and December (84%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in December
Suquamish, WA
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is January (3.43").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Suquamish, WA
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is March (19.3 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in December
Suquamish, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Suquamish, WA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Suquamish, WA
- Average sea temperature in December: 46.6°F
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in December /
Average sunshine in December
Suquamish, 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: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Suquamish, WA
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is August (23 days).
The month with the least sunshine days is November (9.4 days).
Average UV index in December
Suquamish, 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
Suquamish, WA
- Average cloud cover in December: 54
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Suquamish, WA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Suquamish, Washington, USA
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