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
Tennessee's progression into December includes a drop in the average high-temperature, from a frosty 49.1°F (9.5°C) in November to a cold 37°F (2.8°C). The low-temperature average for Tennessee during December stands at a freezing cold 25.9°F (-3.4°C).Humidity
In Tennessee, Illinois, the average relative humidity in December is 79%.Rainfall
December is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.35" (9mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Tennessee. In Tennessee, in December, during 3.7 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Tennessee, during the entire year, snow falls for 20.5 days and aggregates up to 2.44" (62mm) of snow.Daylight
The month with the shortest days in Tennessee is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:37 pm. On the last day of December, in Tennessee, sunrise is at 7:26 am and sunset at 4:47 pm CST.
Sunshine
In December, the average sunshine in Tennessee is 4.6h.UV index
The average daily maximum UV index in December in Tennessee, Illinois, is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is it in Tennessee in December?
What is the average humidity in December in Tennessee?
What is the driest month in Tennessee?
How much does it rain in Tennessee in December?
How many days does it snow in December in Tennessee?
What is the month with the shortest days in Tennessee?
What is the average length of the day in December in Tennessee?
When is the sunrise / sunset in December in Tennessee?
How long on average sun shines in December in Tennessee?
What is the UV index intensity in December in Tennessee?
Average temperature in December
Tennessee, IL
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Tennessee, 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 (29.9"Hg).
Average wind speed in December
Tennessee, IL
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Tennessee, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Tennessee, IL
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in December
Tennessee, IL
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in December
Tennessee, IL
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Tennessee, IL
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (6.3 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
Tennessee, 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 18min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Tennessee, IL
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is June (13.9 days).
Average UV index in December
Tennessee, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Tennessee, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Tennessee, 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).
Tennessee, Illinois, USA
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