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 West Longview, December records the lowest average temperatures, peaking at 42.3°F (5.7°C) and reaching a low of 32.7°F (0.4°C).Humidity
The months with the highest humidity in West Longview are January, February, November and December, with an average relative humidity of 88%.Rainfall
In West Longview, in December, during 18.5 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. Throughout the year, there are 175.5 rainfall days, and 25.83" (656mm) of precipitation is accumulated.Snowfall
Months with snowfall in West Longview are January through March, November and December. In West Longview, during December, snow falls for 0.9 days and regularly aggregates up to 0.24" (6mm) of snow. In West Longview, during the entire year, snow falls for 6.7 days and aggregates up to 3.54" (90mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in West Longview, Washington.On the first day of the month, sunrise is at 7:34 am and sunset at 4:27 pm. On the last day of December, in West Longview, sunrise is at 7:54 am and sunset at 4:36 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 3.5h of sunshine.UV index
In December, the average daily maximum UV index in West Longview is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in West Longview?
Is it cold in West Longview during December?
What are the most humid months in West Longview?
What is the average humidity in December in West Longview?
How much does it rain in West Longview in December?
How many days does it snow in December in West Longview?
What is the month with the shortest days in West Longview?
What is the average length of the day in December in West Longview?
When are sunrise and sunset in December in West Longview?
What is the month with the least sunshine in West Longview?
How many hours of sunshine does West Longview have in December?
What is the UV index intensity in December in West Longview?
Average temperature in December
West Longview, WA
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in December
West Longview, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
West Longview, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in December
West Longview, WA
- Average humidity in December: 88%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
West Longview, WA
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in December
West Longview, WA
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in December
West Longview, WA
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
West Longview, WA
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.2 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
West Longview, WA
- Average daylight in December: 8h and 4min
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 42min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days in December
West Longview, WA
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in December
West Longview, WA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
West Longview, WA
- Average cloud cover in December: 64
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
West Longview, WA
- Average visibility in December: 4mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
West Longview, Washington, USA
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