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
The transition into December indicates a reduction in the average high-temperature, down to a cold 38.7°F (3.7°C) from November's cool 50°F (10°C). Throughout December, an average low-temperature of 27.5°F (-2.5°C) is experienced.Humidity
The average relative humidity in December is 78%.Rainfall
The month with the least rainfall is December, when the rain falls for 8.1 days and typically collects 1.57" (40mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Literberry, in December, snow falls for 6.1 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 31.1 snowfall days, and 12.24" (311mm) 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 7:03 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:46 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 minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Literberry have in December?
When are sunrise and sunset in December in Literberry?
How many hours of sunshine does Literberry have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Literberry, IL
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 27.5°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 (20.7°F).
Average pressure in December
Literberry, 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).
Average wind speed in December
Literberry, IL
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Literberry, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Literberry, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in December
Literberry, IL
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Literberry, IL
- Average snowfall in December: 1.69"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Literberry, IL
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Literberry, 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 June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Literberry, IL
- Average sunshine days in December: 18.6 days
The months with the most sunshine days are November and December (18.6 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Literberry, 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).
Average cloud cover in December
Literberry, IL
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in December
Literberry, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Literberry, Illinois, USA
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