December weather forecast
Lebanon, MO

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Weather in December

December, the first month of the winter in Lebanon, is also a frosty month, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 29.5°F (-1.4°C).

Temperature

The shift from November to December corresponds with a decrease in the average high-temperature, down to a frosty 43.9°F (6.6°C) from a cool 54.3°F (12.4°C). Throughout the month of December, Lebanon witnesses an average temperature of 29.5°F (-1.4°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Lebanon, during December, the rain falls for 8.5 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Lebanon, during the entire year, the rain falls for 150.2 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Lebanon, in December, snow falls for 4.9 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, there are 25.2 snowfall days, and 10.91" (277mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:02 pm CST.

Sunshine

The average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January, February 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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Lebanon in December?

The high-temperature during December is 43.9°F (6.6°C) and the low-temperature is 29.5°F (-1.4°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 98.6°F (37°C).

What is the average humidity in December?

In Lebanon, the average relative humidity in December is 76%.

How many days does it rain in December?

In December, the rain falls for 8.5 days. Throughout December, 2.09" (53mm) of precipitation is accumulated.

How much does it snow in December?

In Lebanon, in December, snow falls for 4.9 days, with typically accumulated 1.97" (50mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

In Lebanon, the average day length in December is 9h and 37min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:02 pm CST.

How many hours of sunshine does Lebanon have in December?

In Lebanon, the average sunshine duration in December is 5.3h.

When is the lowest UV index?

The months with the lowest UV index in Lebanon are January, February and December, with an average maximum UV index of 2.

How high is the UV index in December in Lebanon?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lebanon, MO

Average temperature in December - Lebanon, MO
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in December
Lebanon, MO

Average pressure in December - Lebanon, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Lebanon, MO

Average wind speed in December - Lebanon, MO
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in December
Lebanon, MO

Average humidity in December - Lebanon, MO
  • Average humidity in December: 76%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August, September, October and November (73%).

Average rainfall in December
Lebanon, MO

Average rainfall in December - Lebanon, MO
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Lebanon, MO

Average rainfall days in December - Lebanon, MO
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.3 days).

Average snowfall in December
Lebanon, MO

Average snowfall in December - Lebanon, MO
  • Average snowfall in December: 1.97"

The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Lebanon, MO

Average snowfall days in December - Lebanon, MO
  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Lebanon, MO

Average daylight in December / Average sunshine in December - Lebanon, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December
Lebanon, MO

Average sunshine days in December - Lebanon, MO
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in December
Lebanon, MO

Average UV index in December - Lebanon, MO
  • 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 and December (UV index 2).

Average cloud cover in December
Lebanon, MO

Average cloud cover in December - Lebanon, MO
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Lebanon, MO

Average visibility in December - Lebanon, MO
  • 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, Missouri, USA

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