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 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
December, with an average high of 41.5°F (5.3°C) and a low of 32.9°F (0.5°C), signifies the coldest month of the year.Humidity
The months with the highest humidity are November and December, with an average relative humidity of 90%.Rainfall
In December, the rain falls for 19.9 days. Throughout December, 7.17" (182mm) of precipitation is accumulated. Throughout the year, there are 185.4 rainfall days, and 42.87" (1089mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Lilliwaup. In Lilliwaup, during December, snow falls for 1.6 days and regularly aggregates up to 0.71" (18mm) of snow. Throughout the year, in Lilliwaup, there are 9.1 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:40 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 4:31 pm PST.
Sunshine
December has the least sunshine of the year in Lilliwaup, with an average of 3.5h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lilliwaup. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the coldest months in Lilliwaup?
How cold is it in Lilliwaup in December?
What are the most humid months in Lilliwaup?
What is the average humidity in December in Lilliwaup?
How many days does it rain in December in Lilliwaup?
How much does it snow in Lilliwaup in December?
What is the month with the shortest days in Lilliwaup?
How many hours of daylight does Lilliwaup have in December?
What time are sunrise and sunset in December in Lilliwaup?
What is the month with the least sunshine in Lilliwaup?
How long on average sun shines in December in Lilliwaup?
What is the month with the lowest UV index in Lilliwaup?
How high is the UV index in December in Lilliwaup?
Average temperature in December
Lilliwaup, WA
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).
Average pressure in December
Lilliwaup, WA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in December
Lilliwaup, WA
- Average wind speed in December: 3.7mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is September (3.4mph).
Average humidity in December
Lilliwaup, WA
- Average humidity in December: 90%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Lilliwaup, WA
- Average rainfall in December: 7.17"
The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Lilliwaup, WA
- Average rainfall days in December: 19.9 days
The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Lilliwaup, WA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lilliwaup, WA
- Average snowfall days in December: 1.6 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 daylight in December /
Average sunshine in December
Lilliwaup, 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: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Lilliwaup, WA
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in December
Lilliwaup, 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
Lilliwaup, WA
- Average cloud cover in December: 64
The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Lilliwaup, WA
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).
Lilliwaup, Washington, USA
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