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
With December's arrival, Lebanon's weather changes as the average high-temperature falls from a fresh 53.2°F (11.8°C) in November to a wintry 42.4°F (5.8°C). In the month of December, the temperature in Lebanon generally rests at an average low of 30.2°F (-1°C).Humidity
In December, the average relative humidity in Lebanon, Illinois, is 77%.Rainfall
In December, the rain falls for 5.3 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Lebanon, there are 110.1 rainfall days, and 11.1" (282mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Lebanon, Illinois. In Lebanon, in December, snow falls for 2.9 days, with typically accumulated 0.2" (5mm) of snow. Throughout the year, there are 13.8 snowfall days, and 1.38" (35mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 6:58 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:48 pm CST.
Sunshine
The average sunshine in December is 4.7h.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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Lebanon in December?
What is the average humidity in December in Lebanon?
How much does it rain in Lebanon in December?
How much does it snow in Lebanon in December?
What is the month with the shortest days in Lebanon?
What is the average length of the day in December in Lebanon?
When is the sunrise / sunset in December in Lebanon?
How many hours of sunshine does Lebanon have in December?
What are the months with the lowest UV index in Lebanon?
How high is the UV index in December in Lebanon?
Average temperature in December
Lebanon, IL
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Lebanon, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lebanon, IL
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
Lebanon, IL
- Average humidity in December: 77%
The months with the highest relative humidity are May, July and August (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Lebanon, IL
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in December
Lebanon, IL
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Lebanon, IL
- Average snowfall in December: 0.2"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lebanon, IL
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (4.7 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
Lebanon, IL
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Lebanon, IL
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in December
Lebanon, IL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (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, IL
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Lebanon, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lebanon, Illinois, USA
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