December weather forecast
Rolling Brook, TN

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Weather in December

The first month of the winter, December, is also a fresh month in Rolling Brook, Tennessee, with an average temperature varying between 36.1°F (2.3°C) and 50.5°F (10.3°C).

Temperature

December brings a minor shift in the average high-temperature, adjusting from a refreshing 58.1°F (14.5°C) in November to a cool 50.5°F (10.3°C). December brings with it a nighttime average temperature of 36.1°F (2.3°C).

Humidity

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

Rainfall

In Rolling Brook, in December, it is raining for 11.4 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 148 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Rolling Brook, in December, during 0.7 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Rolling Brook, during the entire year, snow falls for 5.2 days and aggregates up to 1.77" (45mm) 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 December, sunrise is at 7:29 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:37 pm EST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

During December, Rolling Brook experiences an average high-temperature of 50.5°F (10.3°C) and a low-temperature of 36.1°F (2.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 80%.

How many days does it rain in December?

In Rolling Brook, during December, the rain falls for 11.4 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 0.7 days. Throughout December, 0.24" (6mm) 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 December, the average day length is 9h and 50min.

When are sunrise and sunset in December?

On the first day of December in Rolling Brook, sunrise is at 7:29 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Rolling Brook?

With an average of 5.1h of sunshine, December has the least sunshine of the year in Rolling Brook.

How many hours of sunshine does Rolling Brook have in December?

The average sunshine duration in December in Rolling Brook is 5.1h.

When is the lowest UV index?

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

What is the UV index reading in December?

In Rolling Brook, Tennessee, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Rolling Brook, TN

Average temperature in December - Rolling Brook, TN
  • Average high temperature in December: 50.5°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 (46.4°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in December
Rolling Brook, TN

Average pressure in December - Rolling Brook, 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
Rolling Brook, TN

Average wind speed in December - Rolling Brook, TN
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in December
Rolling Brook, TN

Average humidity in December - Rolling Brook, 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, July, August, September, October and November (75%).

Average rainfall in December
Rolling Brook, TN

Average rainfall in December - Rolling Brook, TN
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in December
Rolling Brook, TN

Average rainfall days in December - Rolling Brook, TN
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in December
Rolling Brook, TN

Average snowfall in December - Rolling Brook, TN
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Rolling Brook, TN

Average snowfall days in December - Rolling Brook, TN
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (1.7 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
Rolling Brook, TN

Average daylight in December / Average sunshine in December - Rolling Brook, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Rolling Brook, TN

Average sunshine days in December - Rolling Brook, TN
  • Average sunshine days in December: 17.7 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in December
Rolling Brook, TN

Average UV index in December - Rolling Brook, 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
Rolling Brook, TN

Average cloud cover in December - Rolling Brook, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Rolling Brook, TN

Average visibility in December - Rolling Brook, TN
  • Average visibility in December: 5mi

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

Rolling Brook, Tennessee, USA

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