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
South Lebanon's coldest temperatures are experienced in December, with average high temperatures of 45.3°F (7.4°C) and lows 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
Months with snowfall are January through March, November and December. In South Lebanon, Oregon, during December, snow falls for 0.7 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, in South Lebanon, Oregon, there are 5.6 snowfall days, and 4.09" (104mm) of snow is accumulated.Daylight
The month with the shortest days in South Lebanon is December, with an average of 8h and 54min of daylight.On the first day of December in South Lebanon, sunrise is at 7:28 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:42 pm PST.
Sunshine
In December, the average sunshine in South Lebanon is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Lebanon. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the coldest month in South Lebanon?
What are the temperatures in South Lebanon in December?
What are the most humid months in South Lebanon?
What is the average humidity in December in South Lebanon?
What is the wettest month in South Lebanon?
How many days does it rain in December in South Lebanon?
How much does it snow in South Lebanon in December?
What is the month with the shortest days in South Lebanon?
What is the average length of the day in December in South Lebanon?
When are sunrise and sunset in December in South Lebanon?
How long on average sun shines in December in South Lebanon?
What are the months with the lowest UV index in South Lebanon?
What is the UV index reading in December in South Lebanon?
Average temperature in December
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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).
South Lebanon, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location
