December weather forecast
Viar, TN

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Weather in December

December, the first month of the winter in Viar, is also a frosty month, with an average temperature ranging between max 48.7°F (9.3°C) and min 36.5°F (2.5°C).

Temperature

The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a refreshing 57.6°F (14.2°C) to a chilly 48.7°F (9.3°C). Throughout December, the average low-temperature records at a cold 36.5°F (2.5°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Viar, during December, the rain falls for 8.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 118.2 rainfall days, and 13.58" (345mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, in Viar, it is snowing for 0.5 days. Throughout December, 0.35" (9mm) of snow is accumulated. Throughout the year, in Viar, there are 4.8 snowfall days, and 1.46" (37mm) 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 December, sunrise is at 6:50 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:53 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

In Viar, 48.7°F (9.3°C) is the average high-temperature and 36.5°F (2.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Viar, in December, it is raining for 8.4 days, with typically 1.02" (26mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 0.5 days. Throughout December, 0.35" (9mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Viar have in December?

The average day length in December is 9h and 46min.

What time are sunrise and sunset in December in Viar?

In December, on the first day of the month, sunrise is at 6:50 am and sunset at 4:43 pm. On the last day of the month, in Viar, sunrise is at 7:07 am and sunset at 4:53 pm CST.

How long on average sun shines in December in Viar?

The average sunshine duration in December is 4.8h.

What are the months with the lowest UV index in Viar?

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 Viar, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Viar, TN

Average temperature in December - Viar, TN
  • Average high temperature in December: 48.7°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 (44.6°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in December
Viar, TN

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Viar, TN

Average wind speed in December - Viar, TN
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Viar, TN

Average humidity in December - Viar, TN
  • Average humidity in December: 77%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Viar, TN

Average rainfall in December - Viar, TN
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.59").

Average rainfall days in December
Viar, TN

Average rainfall days in December - Viar, TN
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (7 days).

Average snowfall in December
Viar, TN

Average snowfall in December - Viar, TN
  • Average snowfall in December: 0.35"

The month with the highest snowfall is March (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Viar, TN

Average snowfall days in December - Viar, TN
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is January (1.4 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
Viar, TN

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Viar, TN

Average sunshine days in December - Viar, TN
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is July (14.5 days).

Average UV index in December
Viar, TN

Average UV index in December - Viar, TN
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Viar, TN

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in December
Viar, TN

Average visibility in December - Viar, TN
  • 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).

Viar, Tennessee, USA

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