December weather forecastRollingwood, TN

December

Weather in December

The first month of the winter, December, is also a fresh month in Rollingwood, Tennessee, with an average temperature varying between 36.5°F (2.5°C) and 50.7°F (10.4°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from a mild 58.8°F (14.9°C) in November to a cool 50.7°F (10.4°C). During the December nights, an average temperature of 36.5°F (2.5°C) is observed.

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 13.5 days and typically aggregates up to 4.21" (107mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Rollingwood, in December, during 1.6 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Rollingwood, during the entire year, snow falls for 9.2 days and aggregates up to 2.09" (53mm) 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 7:31 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:39 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

In Rollingwood, 50.7°F (10.4°C) is the average high-temperature and 36.5°F (2.5°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

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

In December, the average relative humidity is 80%.

The month with the most rainfall is December, when the rain falls for 13.5 days and typically aggregates up to 4.21" (107mm) of precipitation.

In Rollingwood, during December, the rain falls for 13.5 days and regularly aggregates up to 4.21" (107mm) of precipitation.

In Rollingwood, in December, snow falls for 1.6 days, with typically accumulated 0.31" (8mm) of snow.

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

In Rollingwood, the average day length in December is 9h and 51min.

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:39 pm EST.

The month with the least sunshine is December, with an average of 5h of sunshine.

The average sunshine duration in December in Rollingwood is 5h.

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

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
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
Rollingwood, TN

  • Average high temperature in December: 50.7°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in December
Rollingwood, TN

  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Rollingwood, TN

  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity in December
Rollingwood, TN

  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Rollingwood, TN

  • Average rainfall in December: 4.21"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").

Average rainfall days in December
Rollingwood, TN

  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in December
Rollingwood, TN

  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Rollingwood, TN

  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (2.9 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
Rollingwood, TN

  • Average daylight in December: 9h and 48min

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 month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Rollingwood, TN

  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in December
Rollingwood, 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 and December (UV index 2).

Average cloud cover in December
Rollingwood, TN

  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Rollingwood, TN

  • Average visibility in December: 5mi

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