December weather forecastRives, TN

December

Weather in December

The first month of the winter, December, is also a frosty month in Rives, Tennessee, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 35.2°F (1.8°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a mild 56.3°F (13.5°C) in November to a frosty 47.3°F (8.5°C). An average low-temperature of 35.2°F (1.8°C) is common during the nights of December.

Humidity

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

Rainfall

In Rives, in December, it is raining for 12.1 days, with typically 3.31" (84mm) of accumulated precipitation. In Rives, Tennessee, during the entire year, the rain falls for 159.3 days and collects up to 39.69" (1008mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Rives, in December, during 1.1 snowfall days, 0.55" (14mm) of snow is typically accumulated. Throughout the year, there are 9.2 snowfall days, and 4.65" (118mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:49 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:51 pm CST.

Sunshine

The average sunshine in December is 4.8h.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures vary between a high-temperature of 47.3°F (8.5°C) and a low-temperature of 35.2°F (1.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

The average relative humidity in December is 78%.

In Rives, Tennessee, in December, during 12.1 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

In Rives, in December, snow falls for 1.1 days, with typically accumulated 0.55" (14mm) of snow.

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

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

On the first day of December, sunrise is at 6:49 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:51 pm CST.

In December, the average sunshine duration is 4.8h.

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

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to 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
Rives, TN

  • Average high temperature in December: 47.3°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in December: 35.2°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

Average pressure in December
Rives, 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 (29.95"Hg).

Average wind speed in December
Rives, TN

  • Average wind speed in December: 8.6mph

The windiest months (with the highest average wind speed) are February, March and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Rives, TN

  • Average humidity in December: 78%

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

Average rainfall in December
Rives, TN

  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is April (4.57").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Rives, TN

  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in December
Rives, TN

  • Average snowfall in December: 0.55"

The month with the highest snowfall is March (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Rives, TN

  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Rives, 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 48min

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

Average sunshine days in December
Rives, TN

  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in December
Rives, TN

  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).

Average cloud cover in December
Rives, 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 26).

Average visibility in December
Rives, 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).