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 stands out as Woodburn's coldest month, with an average high-temperature of 44.4°F (6.9°C) and a low-temperature of 34.5°F (1.4°C).Humidity
In Woodburn, the average relative humidity in December is 85%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.9 days and typically aggregates up to 4.21" (107mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Woodburn, in December, during 0.9 snowfall days, 0.35" (9mm) of snow is typically accumulated. Throughout the year, there are 6.2 snowfall days, and 3.19" (81mm) of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:30 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:39 pm PST.
Sunshine
In Woodburn, the average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is December?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Woodburn?
How many hours of daylight does Woodburn have in December?
What time are sunrise and sunset in December in Woodburn?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December in Woodburn?
Average temperature in December
Woodburn, OR
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in December
Woodburn, OR
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Woodburn, OR
- Average wind speed in December: 5.2mph
The windiest months (with the highest average wind speed) are January and March (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Woodburn, OR
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Woodburn, OR
- Average rainfall in December: 4.21"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Woodburn, OR
- Average rainfall days in December: 18.9 days
The month with the highest number of rainy days is March (19.9 days).
The months with the least rainy days are July and August (4.3 days).
Average snowfall in December
Woodburn, OR
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Woodburn, OR
- Average snowfall days in December: 0.9 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
Woodburn, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Woodburn, OR
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Woodburn, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Woodburn, OR
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Woodburn, OR
- Average visibility in December: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Woodburn, Oregon, USA
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