December weather forecast
Mountain Trace, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Mountain Trace, Tennessee, with an average temperature ranging between min 35.2°F (1.8°C) and max 49.5°F (9.7°C).

Temperature

December ushers in a minor alteration in Mountain Trace's climate, with the average high-temperature moving from November's mild 57.2°F (14°C) to a chilly 49.5°F (9.7°C). Mountain Trace observes an average low-temperature of 35.2°F (1.8°C) during December nights.

Humidity

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

Rainfall

In Mountain Trace, in December, during 11.1 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 149 rainfall days, and 18.74" (476mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Mountain Trace are January through March, October through December. In Mountain Trace, in December, snow falls for 3.6 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, in Mountain Trace, there are 18.9 snowfall days, and 3.58" (91mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:27 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:32 pm EST.

Sunshine

In Mountain Trace, 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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Mountain Trace in December?

During December, Mountain Trace experiences an average high-temperature of 49.5°F (9.7°C) and a low-temperature of 35.2°F (1.8°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the most humid month in Mountain Trace?

The most humid month in Mountain Trace is December, with an average relative humidity of 79%.

What is the average humidity in December in Mountain Trace?

In December, the average relative humidity in Mountain Trace, Tennessee, is 79%.

How much does it rain in Mountain Trace in December?

In Mountain Trace, in December, it is raining for 11.1 days, with typically 1.54" (39mm) of accumulated precipitation.

How much does it snow in Mountain Trace in December?

In Mountain Trace, in December, snow falls for 3.6 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Mountain Trace?

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

What is the average length of the day in December in Mountain Trace?

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

When are sunrise and sunset in December in Mountain Trace?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:32 pm EST.

How long on average sun shines in December in Mountain Trace?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index in Mountain Trace?

The months with the lowest UV index in Mountain Trace, Tennessee, are January, February and December, with an average maximum UV index of 2.

How high is the UV index in December in Mountain Trace?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Mountain Trace, TN

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

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in December: 35.2°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 (29.5°F).

Average pressure in December
Mountain Trace, TN

Average pressure in December - Mountain Trace, 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
Mountain Trace, TN

Average wind speed in December - Mountain Trace, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in December
Mountain Trace, TN

Average humidity in December - Mountain Trace, 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 (72%).

Average rainfall in December
Mountain Trace, TN

Average rainfall in December - Mountain Trace, TN
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is October (1.18").

Average rainfall days in December
Mountain Trace, TN

Average rainfall days in December - Mountain Trace, TN
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in December
Mountain Trace, TN

Average snowfall in December - Mountain Trace, TN
  • Average snowfall in December: 0.63"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Mountain Trace, TN

Average snowfall days in December - Mountain Trace, TN
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (5.4 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
Mountain Trace, TN

Average daylight in December / Average sunshine in December - Mountain Trace, 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 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Mountain Trace, TN

Average sunshine days in December - Mountain Trace, TN
  • Average sunshine days in December: 17 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

Average UV index in December
Mountain Trace, TN

Average UV index in December - Mountain Trace, 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
Mountain Trace, TN

Average cloud cover in December - Mountain Trace, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Mountain Trace, TN

Average visibility in December - Mountain Trace, TN
  • Average visibility in December: 6mi

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

Mountain Trace, Tennessee, USA

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