December weather forecast
Lebanon, IN

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Weather in December

December, the first month of the winter in Lebanon, is also a wintry month, with an average temperature ranging between max 37.6°F (3.1°C) and min 27.1°F (-2.7°C).

Temperature

The transition into December involves a decrease in the average high-temperature, falling from a chilly 48°F (8.9°C) in November to a cold 37.6°F (3.1°C). Lebanon experiences an average temperature drop to a freezing cold 27.1°F (-2.7°C) during December nights.

Humidity

The months with the highest humidity in Lebanon, Indiana, are January, July and December, with an average relative humidity of 83%.

Rainfall

In December, in Lebanon, the rain falls for 9.1 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. Throughout the year, in Lebanon, Indiana, there are 163.9 rainfall days, and 31.54" (801mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Lebanon, in December, during 8.7 snowfall days, 3.31" (84mm) of snow is typically accumulated. Throughout the year, in Lebanon, Indiana, there are 40.6 snowfall days, and 13.46" (342mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:49 am and sunset at 5:21 pm. On the last day of December, in Lebanon, sunrise is at 8:07 am and sunset at 5:30 pm EST.

Sunshine

In Lebanon, the average sunshine in December is 4h.

UV index

December is the month with the lowest UV index in Lebanon, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Lebanon?

In Lebanon, 37.6°F (3.1°C) is the average high-temperature and 27.1°F (-2.7°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What are the most humid months in Lebanon?

The months with the highest humidity in Lebanon are January, July and December, with an average relative humidity of 83%.

What is the average humidity in December in Lebanon?

The average relative humidity in December in Lebanon, Indiana, is 83%.

How many days does it rain in December in Lebanon?

In Lebanon, in December, during 9.1 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How much does it snow in Lebanon in December?

In Lebanon, in December, snow falls for 8.7 days, with typically accumulated 3.31" (84mm) of snow.

What is the month with the shortest days in Lebanon?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Lebanon have in December?

In December, the average day length in Lebanon, Indiana, is 9h and 23min.

When are sunrise and sunset in December in Lebanon?

In December, on the first day of the month, sunrise is at 7:49 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:30 pm EST.

How long on average sun shines in December in Lebanon?

In Lebanon, the average sunshine duration in December is 4h.

What is the month with the lowest UV index in Lebanon?

The month with the lowest UV index is December, with an average maximum UV index of 1.

How high is the UV index in December in Lebanon?

The average daily maximum UV index in December in Lebanon, Indiana, is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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, IN

Average temperature in December - Lebanon, IN
  • Average high temperature in December: 37.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Lebanon, IN

Average pressure in December - Lebanon, IN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Lebanon, IN

Average wind speed in December - Lebanon, IN
  • Average wind speed in December: 9.7mph

The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Lebanon, IN

Average humidity in December - Lebanon, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January, July and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Lebanon, IN

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

The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is February (1.85").

Average rainfall days in December
Lebanon, IN

Average rainfall days in December - Lebanon, IN
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (7.8 days).

Average snowfall in December
Lebanon, IN

Average snowfall in December - Lebanon, IN
  • Average snowfall in December: 3.31"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Lebanon, IN

Average snowfall days in December - Lebanon, IN
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (11.9 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, IN

Average daylight in December / Average sunshine in December - Lebanon, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Lebanon, IN

Average sunshine days in December - Lebanon, IN
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (9.3 days).

Average UV index in December
Lebanon, IN

Average UV index in December - Lebanon, IN
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Lebanon, IN

Average cloud cover in December - Lebanon, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Lebanon, IN

Average visibility in December - Lebanon, IN
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Lebanon, Indiana, USA

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