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 onset of December introduces a moderate change in Energy's weather, with average high-temperatures falling from November's fresh 53.8°F (12.1°C) to a frosty 43.9°F (6.6°C). In Energy, December is marked by an average low-temperature of 31.8°F (-0.1°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, in Energy, the rain falls for 9.1 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 137.6 rainfall days, and 23.03" (585mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, in Energy, it is snowing for 2.7 days. Throughout December, 0.91" (23mm) of snow is accumulated. Throughout the year, there are 14.5 snowfall days, and 4.13" (105mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Energy.On the first day of December, sunrise is at 6:53 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:47 pm CST.
Sunshine
In December, the average sunshine is 4.7h.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 unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Energy during December?
What is the average humidity in December in Energy?
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 Energy have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Energy, IL
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Energy, IL
- 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 (29.94"Hg).
Average wind speed in December
Energy, IL
- Average wind speed in December: 8.8mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Energy, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Energy, IL
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in December
Energy, IL
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Energy, IL
- Average snowfall in December: 0.91"
The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Energy, IL
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is February (4.3 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
Energy, IL
- 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: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Energy, IL
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in December
Energy, 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, February and December (UV index 2).
Average cloud cover in December
Energy, 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, August and September (Cloud cover 28).
Average visibility in December
Energy, 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).
Energy, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location