December weather forecastMarrowbone, TN

December

Weather in December

The first month of the winter, December, is still a chilly month in Marrowbone, Tennessee, with an average temperature varying between 48°F (8.9°C) and 35.4°F (1.9°C).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from a moderate 56.7°F (13.7°C) in November to a chilly 48°F (8.9°C). Marrowbone records a consistent low-temperature of 35.4°F (1.9°C) during December nights.

Humidity

In December, the average relative humidity in Marrowbone is 78%.

Rainfall

In December, the rain falls for 13.1 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. In Marrowbone, during the entire year, the rain falls for 177.6 days and collects up to 40.24" (1022mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Marrowbone. In Marrowbone, in December, snow falls for 1.8 days, with typically accumulated 0.75" (19mm) of snow. In Marrowbone, during the entire year, snow falls for 11.2 days and aggregates up to 3.86" (98mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 6:40 am and sunset at 4:32 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:43 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

During December, Marrowbone experiences an average high-temperature of 48°F (8.9°C) and a low-temperature of 35.4°F (1.9°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

In Marrowbone, the average relative humidity in December is 78%.

In December, the rain falls for 13.1 days. Throughout December, 3.27" (83mm) of precipitation is accumulated.

In Marrowbone, in December, during 1.8 snowfall days, 0.75" (19mm) of snow is typically accumulated.

December has the shortest days of the year, with an average of 9h and 42min of daylight.

In December, the average day length is 9h and 44min.

On the first day of December in Marrowbone, sunrise is at 6:40 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:43 pm CST.

In December, the average sunshine duration is 4.7h.

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

In Marrowbone, 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 exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Marrowbone, TN

  • Average high temperature in December: 48°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 (43.9°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in December
Marrowbone, 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 (29.96"Hg).

Average wind speed in December
Marrowbone, TN

  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Marrowbone, TN

  • Average humidity in December: 78%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Marrowbone, TN

  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is July (4.33").
The driest months (with the least rainfall) are September and November (2.44").

Average rainfall days in December
Marrowbone, TN

  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in December
Marrowbone, TN

  • Average snowfall in December: 0.75"

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

Average snowfall days in December
Marrowbone, TN

  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is February (3.6 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
Marrowbone, TN

  • Average daylight in December: 9h and 42min

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 42min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Marrowbone, TN

  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in December
Marrowbone, 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
Marrowbone, TN

  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Marrowbone, 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).