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
In Pacific, the month of December registers the lowest temperatures, averaging 41.9°F (5.5°C) at the peak and 32.5°F (0.3°C) at the lowest.Humidity
January, February and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Pacific, during December, the rain falls for 16 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Pacific, Washington, during the entire year, the rain falls for 162.5 days and collects up to 17.87" (454mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Pacific, Washington. In Pacific, in December, during 1.3 snowfall days, 0.28" (7mm) of snow is typically accumulated. Throughout the year, in Pacific, there are 8.4 snowfall days, and 2.24" (57mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:35 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:55 am and sunset at 4:29 pm PST.
Sunshine
The months with the least sunshine in Pacific, Washington, are January and December, with an average of 4.3h 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 low health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Pacific?
Is it cold in Pacific during December?
What is the most humid month in Pacific?
What is the average humidity in December in Pacific?
How many days does it rain in December in Pacific?
How many days does it snow in December in Pacific?
What is the month with the shortest days in Pacific?
How many hours of daylight does Pacific have in December?
What time are sunrise and sunset in December in Pacific?
What is the month with the least sunshine in Pacific?
How many hours of sunshine does Pacific have in December?
What are the months with the lowest UV index in Pacific?
What is the UV index reading in December in Pacific?
Average temperature in December
Pacific, WA
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).
Average pressure in December
Pacific, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Pacific, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Pacific, WA
- Average humidity in December: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Pacific, WA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is January (2.6").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Pacific, WA
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Pacific, WA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Pacific, WA
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (2.7 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
Pacific, WA
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in December
Pacific, WA
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Pacific, WA
- Average UV index in December: 2
The month with the highest UV index is 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
Pacific, WA
- Average cloud cover in December: 56
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Pacific, WA
- Average visibility in December: 4mi
The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is December (4mi).
Pacific, Washington, USA
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