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 is marked by a minor decrease in temperature, transitioning from a comfortable 63.7°F (17.6°C) in November to a mild 56.3°F (13.5°C). Knoxville's average low-temperature in the month of December is recorded at a cold 41.5°F (5.3°C).Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Knoxville, in December, it is raining for 13.4 days, with typically 4.09" (104mm) of accumulated precipitation. In Knoxville, during the entire year, the rain falls for 166.5 days and collects up to 39.41" (1001mm) of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.47" (12mm) of snow. In Knoxville, during the entire year, snow falls for 2.3 days and aggregates up to 1.26" (32mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:36 am and sunset at 4:44 pm. On the last day of December, sunrise is at 6:53 am and sunset at 4:55 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.8h of sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Knoxville. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Knoxville in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Knoxville, AL
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in December: 41.5°F
The months with the highest average low temperature are July and August (71.6°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in December
Knoxville, AL
- 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 (29.97"Hg).
Average wind speed in December
Knoxville, AL
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Knoxville, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Knoxville, AL
- Average rainfall in December: 4.09"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is October (2.28").
Average rainfall days in December
Knoxville, AL
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Knoxville, AL
- Average snowfall in December: 0.47"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Knoxville, AL
- Average snowfall days in December: 0.5 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Knoxville, AL
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Knoxville, AL
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in December
Knoxville, AL
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Knoxville, AL
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Knoxville, AL
- 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).
Knoxville, Alabama, USA
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