December weather forecast
Knoxville, AL

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Weather in December

December, the first month of the winter in Knoxville, is also a moderate month, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 41.5°F (5.3°C).

Temperature

As November transitions into December, Knoxville sees a gentle drop in the average high-temperature, transitioning from an enjoyable 63.7°F (17.6°C) to a moderate 56.3°F (13.5°C). The temperature in Knoxville, Alabama, lowers to an average of 41.5°F (5.3°C) during December nights.

Humidity

December is the most humid month in Knoxville, 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

Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.47" (12mm) of snow. Throughout the year, there are 2.3 snowfall days, and 1.26" (32mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
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, in Knoxville, Alabama, sunrise is at 6:53 am and sunset at 4:55 pm CST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in December transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are December temperatures in Knoxville?

An average high-temperature, in December, in Knoxville, is 56.3°F (13.5°C) and the average low-temperature is 41.5°F (5.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 98.6°F (37°C).

What is the most humid month in Knoxville?

With an average relative humidity of 80%, December is the most humid month in Knoxville.

What is the average humidity in December in Knoxville?

In Knoxville, Alabama, the average relative humidity in December is 80%.

How much does it rain in Knoxville in December?

In December, in Knoxville, the rain falls for 13.4 days. Throughout December, 4.09" (104mm) of precipitation is accumulated.

When does it start to snow in Knoxville?

December is the first month it typically snows in Knoxville. Throughout December, in the average 0.5 snowfall days, it receives 0.47" (12mm) of snow.

What is the month with the shortest days in Knoxville?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Knoxville, Alabama.

How many hours of daylight does Knoxville have in December?

The average day length in December in Knoxville, Alabama, is 10h and 1min.

What time are sunrise and sunset in December in Knoxville?

In December, on the first day of the month, sunrise is at 6:36 am and sunset at 4:44 pm. On the last day of the month, in Knoxville, sunrise is at 6:53 am and sunset at 4:55 pm CST.

What is the month with the least sunshine in Knoxville?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Knoxville.

How long on average sun shines in December in Knoxville?

In December, the average sunshine duration in Knoxville, Alabama, is 4.8h.

When is the lowest UV index in Knoxville?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Knoxville?

The average daily maximum UV index in December in Knoxville is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Knoxville, AL

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).

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Average pressure in December
Knoxville, AL

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).

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Average wind speed in December
Knoxville, AL

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).

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Average humidity in December
Knoxville, AL

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%).

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Average rainfall in December
Knoxville, AL

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").

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Average rainfall days in December
Knoxville, AL

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).

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Average snowfall in December
Knoxville, AL

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").

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Average snowfall days in December
Knoxville, AL

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).

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Average daylight in December /
Average sunshine in December
Knoxville, AL

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).

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Average sunshine days in December
Knoxville, AL

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).

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Average UV index in December
Knoxville, AL

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).

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Average cloud cover in December
Knoxville, AL

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).

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Average visibility in December
Knoxville, AL

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).

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Knoxville, Alabama, USA

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