December weather forecast
Tranquillity, TN

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Weather in December

The first month of the winter, December, is still a cool month in Tranquillity, Tennessee, with an average temperature ranging between min 35.8°F (2.1°C) and max 50°F (10°C).

Temperature

As December arrives, Tranquillity's weather displays a minor decrease in high-temperatures, transitioning from November's moderate 57.6°F (14.2°C) to a cool 50°F (10°C). In December, Tranquillity reports a consistent average low-temperature of 35.8°F (2.1°C) during the nights.

Humidity

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

Rainfall

The months with the most rainfall are July and December, with an average 4.29" (109mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Tranquillity, Tennessee, during December, snow falls for 2.2 days and regularly aggregates up to 0.55" (14mm) of snow. Throughout the year, there are 14.8 snowfall days, and 3.07" (78mm) of snow is accumulated.

Daylight

The month with the shortest days in Tranquillity is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 5:25 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:36 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5h of sunshine.

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 of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

In Tranquillity, 50°F (10°C) is the average high-temperature and 35.8°F (2.1°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in September is computed to be 86°F (30°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 80%.

What is the average humidity in December in Tranquillity?

In December, the average relative humidity is 80%.

What is the wettest month?

The wettest months are July and December, with an average 4.29" (109mm) of rainfall.

How many days does it rain in December?

In Tranquillity, in December, it is raining for 13.6 days, with typically 4.29" (109mm) of accumulated precipitation.

How many days does it snow in December in Tranquillity?

In December, it is snowing for 2.2 days. Throughout December, 0.55" (14mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Tranquillity.

How many hours of daylight does Tranquillity have in December?

In Tranquillity, the average day length in December is 9h and 48min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:36 pm EST.

What is the month with the least sunshine?

With an average of 5h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Tranquillity, TN

Average temperature in December - Tranquillity, TN
  • Average high temperature in December: 50°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 (45.5°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Tranquillity, TN

Average pressure in December - Tranquillity, TN
  • Average pressure in December: 30.15"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
Tranquillity, TN

Average wind speed in December - Tranquillity, TN
  • Average wind speed in December: 5.8mph

The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity in December
Tranquillity, TN

Average humidity in December - Tranquillity, TN
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).

Average rainfall in December
Tranquillity, TN

Average rainfall in December - Tranquillity, TN
  • Average rainfall in December: 4.29"

The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").

Average rainfall days in December
Tranquillity, TN

Average rainfall days in December - Tranquillity, 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 (9.5 days).

Average snowfall in December
Tranquillity, TN

Average snowfall in December - Tranquillity, TN
  • Average snowfall in December: 0.55"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Tranquillity, TN

Average snowfall days in December - Tranquillity, TN
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is January (4.8 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
Tranquillity, TN

Average daylight in December / Average sunshine in December - Tranquillity, 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 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Tranquillity, TN

Average sunshine days in December - Tranquillity, TN
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in December
Tranquillity, TN

Average UV index in December - Tranquillity, 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
Tranquillity, TN

Average cloud cover in December - Tranquillity, TN
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Tranquillity, TN

Average visibility in December - Tranquillity, 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).

Tranquillity, Tennessee, USA

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