December weather forecastNew Liberty, IL
December
Weather in December
The first month of the winter, December, is also a frosty month in New Liberty, Illinois, with an average temperature fluctuating between 34.2°F (1.2°C) and 46.2°F (7.9°C).Temperature
The beginning of December involves a decrease in the average high-temperature, transitioning from a mild 55.6°F (13.1°C) in November to a frosty 46.2°F (7.9°C). In New Liberty, an average temperature of 34.2°F (1.2°C) is noted during December nights.Humidity
In New Liberty, the average relative humidity in December is 78%.Rainfall
In New Liberty, during December, the rain falls for 9 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 126.4 rainfall days, and 16.89" (429mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 1.4 days. Throughout December, 0.08" (2mm) of snow is accumulated. In New Liberty, during the entire year, snow falls for 8.9 days and aggregates up to 1.65" (42mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:49 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:47 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
New Liberty, IL
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
New Liberty, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
New Liberty, IL
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
New Liberty, IL
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
New Liberty, IL
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
New Liberty, IL
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is October (7.6 days).
Average snowfall in December
New Liberty, IL
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
New Liberty, IL
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (3.3 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
New Liberty, IL
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
New Liberty, IL
- Average sunshine days in December: 20 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in December
New Liberty, 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 and December (UV index 2).
Average cloud cover in December
New Liberty, IL
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in December
New 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).
