December weather forecast
Sweet Briar, TN

Share

Weather in December

The first month of the winter, December, is still a chilly month in Sweet Briar, Tennessee, with an average temperature fluctuating between 35.4°F (1.9°C) and 49.1°F (9.5°C).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from a mild 57°F (13.9°C) in November to a chilly 49.1°F (9.5°C). Sweet Briar throughout December, experiences an average nighttime temperature of 35.4°F (1.9°C).

Humidity

With an average relative humidity of 79%, December is the most humid month in Sweet Briar.

Rainfall

In Sweet Briar, in December, it is raining for 14.2 days, with typically 3.86" (98mm) of accumulated precipitation. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Sweet Briar, in December, snow falls for 3.5 days, with typically accumulated 0.83" (21mm) of snow. In Sweet Briar, during the entire year, snow falls for 19 days and aggregates up to 5.59" (142mm) of snow.

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 7:29 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:33 pm EST.

Sunshine

In Sweet Briar, 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 hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 2 in December translates into these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What is the temperature in December?

The average high-temperature, in December, in Sweet Briar, is 49.1°F (9.5°C), while the average low-temperature is 35.4°F (1.9°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the most humid month?

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

What is the average humidity in December?

In Sweet Briar, the average relative humidity in December is 79%.

How many days does it rain in December?

In Sweet Briar, in December, during 14.2 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

How many days does it snow in December in Sweet Briar?

In December, it is snowing for 3.5 days. Throughout December, 0.83" (21mm) 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.

What is the average length of the day in December?

In Sweet Briar, the average day length in December is 9h and 46min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:33 pm EST.

How many hours of sunshine does Sweet Briar have in December?

In Sweet Briar, the average sunshine duration in December is 5.2h.

What is the month with 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 intensity in December?

In Sweet Briar, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Sweet Briar, TN

Average temperature in December - Sweet Briar, TN
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in December
Sweet Briar, TN

Average pressure in December - Sweet Briar, 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
Sweet Briar, TN

Average wind speed in December - Sweet Briar, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in December
Sweet Briar, TN

Average humidity in December - Sweet Briar, 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
Sweet Briar, TN

Average rainfall in December - Sweet Briar, TN
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Sweet Briar, TN

Average rainfall days in December - Sweet Briar, TN
  • Average rainfall days in December: 14.2 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in December
Sweet Briar, TN

Average snowfall in December - Sweet Briar, TN
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Sweet Briar, TN

Average snowfall days in December - Sweet Briar, TN
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (5.5 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
Sweet Briar, TN

Average daylight in December / Average sunshine in December - Sweet Briar, 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: 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
Sweet Briar, TN

Average sunshine days in December - Sweet Briar, TN
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Sweet Briar, TN

Average UV index in December - Sweet Briar, 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
Sweet Briar, TN

Average cloud cover in December - Sweet Briar, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Sweet Briar, TN

Average visibility in December - Sweet Briar, 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).

Sweet Briar, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location