December weather forecast
Liberty, IL

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Weather in December

The first month of the winter, December, is still a cold month in Liberty, Illinois, with an average temperature fluctuating between 38.5°F (3.6°C) and 26.8°F (-2.9°C).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a cool 50.2°F (10.1°C) in November to a wintry 38.5°F (3.6°C). During the month of December, Liberty's nighttime temperature lowers to an average of 26.8°F (-2.9°C).

Humidity

The average relative humidity in December in Liberty is 78%.

Rainfall

The months with the least rainfall are January and December Rain falls for 5.8 days and accumulates 1.02" (26mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Liberty. In Liberty, Illinois, during December, snow falls for 5.5 days and regularly aggregates up to 1.46" (37mm) of snow. Throughout the year, in Liberty, there are 27.6 snowfall days, and 7.95" (202mm) of snow is accumulated.

Daylight

The month with the shortest days in Liberty is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:49 pm CST.

Sunshine

In Liberty, the average sunshine in December is 4.7h.

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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 in December translates into these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

Is it cold in Liberty during December?

The high-temperature, in December, in Liberty, records 38.5°F (3.6°C), while the low-temperature is 26.8°F (-2.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What is the average humidity in December in Liberty?

The average relative humidity in December in Liberty, Illinois, is 78%.

What is the driest month in Liberty?

The months with the least rainfall in Liberty are January and December Rain falls for 5.8 days and accumulates 1.02" (26mm) of rain.

How much does it rain in Liberty in December?

In Liberty, Illinois, during December, the rain falls for 5.8 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How many days does it snow in December in Liberty?

In Liberty, Illinois, in December, snow falls for 5.5 days, with typically accumulated 1.46" (37mm) of snow.

What is the month with the shortest days in Liberty?

The month with the shortest days in Liberty, Illinois, is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Liberty have in December?

The average day length in December in Liberty is 9h and 24min.

When is the sunrise / sunset in December in Liberty?

On the first day of December in Liberty, Illinois, sunrise is at 7:07 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:49 pm CST.

How many hours of sunshine does Liberty have in December?

In Liberty, the average sunshine duration in December is 4.7h.

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

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

What is the UV index intensity in December in Liberty?

The average daily maximum UV index in December in Liberty, Illinois, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Liberty, IL

Average temperature in December - Liberty, IL
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
Liberty, IL

Average pressure in December - Liberty, IL
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Liberty, IL

Average wind speed in December - Liberty, IL
  • Average wind speed in December: 9.8mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in December
Liberty, IL

Average humidity in December - Liberty, IL
  • Average humidity in December: 78%

The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Liberty, IL

Average rainfall in December - Liberty, IL
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are January and December (1.02").

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Average rainfall days in December
Liberty, IL

Average rainfall days in December - Liberty, IL
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (5 days).

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Average snowfall in December
Liberty, IL

Average snowfall in December - Liberty, IL
  • Average snowfall in December: 1.46"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Liberty, IL

Average snowfall days in December - Liberty, IL
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Liberty, IL

Average daylight in December / Average sunshine in December - Liberty, IL
  • 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in December
Liberty, IL

Average sunshine days in December - Liberty, IL
  • Average sunshine days in December: 19.6 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in December
Liberty, IL

Average UV index in December - Liberty, IL
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Liberty, IL

Average cloud cover in December - Liberty, IL
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in December
Liberty, IL

Average visibility in December - Liberty, 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).

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Liberty, Illinois, USA

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