December weather forecast
Loudon, TN

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A tranquil scene as the rays of the setting sun seeps through the amazing landscape in the hilly region in Loudon, Tennessee
A tranquil scene as the rays of the setting sun seeps through the amazing landscape in the hilly region in Loudon, Tennessee

Weather in December

The year ends on a snowy note for Loudon with December ushering in the full force of winter. While the snowfall measures approximately 0.39" (10mm) over 2.5 days, temperatures sit between 35.4°F (1.9°C) and 49.5°F (9.7°C). The significant drop in temperatures compared to November blankets the town in a white winter wonderland, setting the stage for merry Christmas celebrations and a hopeful new year.

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's moderate 57.2°F (14°C) to a frosty 49.5°F (9.7°C). In Loudon, the average nighttime temperature during December is a cold 35.4°F (1.9°C).

Humidity

December is the most humid month, with an average relative humidity of 79%.

Rainfall

In Loudon, in December, it is raining for 13.6 days, with typically 3.11" (79mm) of accumulated precipitation. In Loudon, during the entire year, the rain falls for 171.1 days and collects up to 32.24" (819mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Loudon, in December, snow falls for 2.5 days, with typically accumulated 0.39" (10mm) of snow. Throughout the year, there are 15 snowfall days, and 2.52" (64mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:29 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:34 pm EST.

Sunshine

In Loudon, the average sunshine in December is 5.2h.

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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 2 in December transforms into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Loudon in December?

In December, the average high-temperature and low-temperature in Loudon are 49.5°F (9.7°C) and 35.4°F (1.9°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the most humid month?

December is the most humid month in Loudon, with an average relative humidity of 79%.

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December?

In Loudon, during December, the rain falls for 13.6 days and regularly aggregates up to 3.11" (79mm) of precipitation.

How much does it snow in December?

In Loudon, in December, during 2.5 snowfall days, 0.39" (10mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December in Loudon?

In December, the average day length is 9h and 47min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:34 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December in Loudon?

In Loudon, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
Loudon, TN

Average temperature in December - Loudon, TN
  • Average high temperature in December: 49.5°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in December
Loudon, TN

Average pressure in December - Loudon, TN
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Loudon, TN

Average wind speed in December - Loudon, TN
  • Average wind speed in December: 5.4mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in December
Loudon, TN

Average humidity in December - Loudon, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (74%).

Average rainfall in December
Loudon, TN

Average rainfall in December - Loudon, TN
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Loudon, TN

Average rainfall days in December - Loudon, TN
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in December
Loudon, TN

Average snowfall in December - Loudon, TN
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Loudon, TN

Average snowfall days in December - Loudon, TN
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (4.7 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
Loudon, TN

Average daylight in December / Average sunshine in December - Loudon, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Loudon, TN

Average sunshine days in December - Loudon, TN
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in December
Loudon, TN

Average UV index in December - Loudon, TN
  • 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
Loudon, TN

Average cloud cover in December - Loudon, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Loudon, TN

Average visibility in December - Loudon, TN
  • Average visibility in December: 6mi

The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).

Loudon, Tennessee, USA

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