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, on average, is the coldest month in Lebanon, registering a high temperature of 45.3°F (7.4°C) and a low of 34.2°F (1.2°C).Humidity
January through March and December, with an average relative humidity of 86%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 18 days and typically aggregates up to 4.41" (112mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Lebanon. In Lebanon, Oregon, during December, snow falls for 0.7 days and regularly aggregates up to 0.31" (8mm) of snow. In Lebanon, during the entire year, snow falls for 5.6 days and aggregates up to 4.09" (104mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Lebanon.On the first day of December in Lebanon, sunrise is at 7:28 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:41 pm PST.
Sunshine
In December, the average sunshine 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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the coldest time of year in Lebanon?
What are December temperatures in Lebanon?
What are the most humid months in Lebanon?
What is the average humidity in December in Lebanon?
What is the wettest month in Lebanon?
How many days does it rain in December in Lebanon?
How much does it snow in Lebanon in December?
What is the month with the shortest days in Lebanon?
How many hours of daylight does Lebanon have in December?
When are sunrise and sunset in December in Lebanon?
How long on average sun shines in December in Lebanon?
When is the lowest UV index in Lebanon?
How high is the UV index in December in Lebanon?
Average temperature in December
Lebanon, OR
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Lebanon, OR
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Lebanon, OR
- Average wind speed in December: 5mph
The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Lebanon, OR
- Average humidity in December: 86%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Lebanon, OR
- Average rainfall in December: 4.41"
The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Lebanon, OR
- Average rainfall days in December: 18 days
The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).
Average snowfall in December
Lebanon, OR
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lebanon, OR
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (2.5 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
Lebanon, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Lebanon, OR
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).
Average UV index in December
Lebanon, 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
Lebanon, OR
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Lebanon, OR
- Average visibility in December: 5mi
The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is February (4mi).
Lebanon, Oregon, USA
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