December weather forecast
Thorn Hill, TN

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Weather in December

December, the first month of the winter in Thorn Hill, is still a chilly month, with an average temperature fluctuating between 32.9°F (0.5°C) and 46.2°F (7.9°C).

Temperature

As December arrives, Thorn Hill's weather displays a minor decrease in high-temperatures, transitioning from November's cool 54.5°F (12.5°C) to a frosty 46.2°F (7.9°C). Thorn Hill, during December, witnesses an average low-temperature of 32.9°F (0.5°C).

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In December, the rain falls for 13.5 days. Throughout December, 3.5" (89mm) of precipitation is accumulated. In Thorn Hill, Tennessee, during the entire year, the rain falls for 178.4 days and collects up to 40.16" (1020mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Thorn Hill, in December, snow falls for 5.9 days, with typically accumulated 3.31" (84mm) of snow. Throughout the year, in Thorn Hill, there are 30.7 snowfall days, and 13.03" (331mm) of snow is accumulated.

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 7:27 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:28 pm EST.

Sunshine

In Thorn Hill, the average sunshine in December is 4.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Thorn Hill?

In Thorn Hill, in December, the average high-temperature is 46.2°F (7.9°C), and the average low-temperature is 32.9°F (0.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 95°F (35°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 81%.

What is the average humidity in December?

In December, the average relative humidity in Thorn Hill is 81%.

How many days does it rain in December?

In Thorn Hill, during December, the rain falls for 13.5 days and regularly aggregates up to 3.5" (89mm) of precipitation.

How much does it snow in December?

In Thorn Hill, in December, during 5.9 snowfall days, 3.31" (84mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Thorn Hill have in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:28 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.7h.

When is the lowest UV index?

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

How high is the UV index in December?

In Thorn Hill, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Thorn Hill, TN

Average temperature in December - Thorn Hill, TN
  • Average high temperature in December: 46.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December
Thorn Hill, TN

Average pressure in December - Thorn Hill, 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
Thorn Hill, TN

Average wind speed in December - Thorn Hill, TN
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in December
Thorn Hill, TN

Average humidity in December - Thorn Hill, TN
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December
Thorn Hill, TN

Average rainfall in December - Thorn Hill, TN
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is February (4.72").
The driest month (with the least rainfall) is September (2.32").

Average rainfall days in December
Thorn Hill, TN

Average rainfall days in December - Thorn Hill, TN
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in December
Thorn Hill, TN

Average snowfall in December - Thorn Hill, TN
  • Average snowfall in December: 3.31"

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Thorn Hill, TN

Average snowfall days in December - Thorn Hill, TN
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is January (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
Thorn Hill, TN

Average daylight in December / Average sunshine in December - Thorn Hill, TN
  • Average daylight in December: 9h and 4min

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 4min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in December
Thorn Hill, TN

Average sunshine days in December - Thorn Hill, TN
  • Average sunshine days in December: 14 days

The month with the most sunshine days is October (16.7 days).
The months with the least sunshine days are February and July (10 days).

Average UV index in December
Thorn Hill, TN

Average UV index in December - Thorn Hill, 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, November and December (UV index 2).

Average cloud cover in December
Thorn Hill, TN

Average cloud cover in December - Thorn Hill, TN
  • Average cloud cover in December: 53

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in December
Thorn Hill, TN

Average visibility in December - Thorn Hill, TN
  • Average visibility in December: 5mi

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

Thorn Hill, Tennessee, USA

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