December weather forecast
Georgetown, TN

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Weather in December

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

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's mild 58.1°F (14.5°C) to a cool 50.5°F (10.3°C). Georgetown experiences an average low-temperature reading of 36.1°F (2.3°C) throughout December.

Humidity

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

Rainfall

In Georgetown, Tennessee, in December, it is raining for 11.4 days, with typically 2.36" (60mm) of accumulated precipitation. In Georgetown, during the entire year, the rain falls for 148 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Georgetown. In Georgetown, during December, snow falls for 0.7 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, there are 5.2 snowfall days, and 1.77" (45mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Georgetown, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:37 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

Georgetown in December has an average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 36.1°F (2.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in September is calculated to be 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 80%.

How many days does it rain in December?

In Georgetown, Tennessee, in December, during 11.4 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

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?

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

What is the average length of the day in December?

In Georgetown, the average day length in December is 9h and 49min.

When is the sunrise / sunset in December in Georgetown?

On the first day of December, sunrise is at 7:30 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:37 pm EST.

What is the month with the least sunshine?

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

How many hours of sunshine does Georgetown have in December?

The average sunshine duration in December is 5.1h.

When is the lowest UV index?

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

How high is the UV index in December?

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 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
Georgetown, TN

Average temperature in December - Georgetown, 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
Georgetown, TN

Average pressure in December - Georgetown, 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
Georgetown, TN

Average wind speed in December - Georgetown, 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
Georgetown, TN

Average humidity in December - Georgetown, 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
Georgetown, TN

Average rainfall in December - Georgetown, 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
Georgetown, TN

Average rainfall days in December - Georgetown, 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
Georgetown, TN

Average snowfall in December - Georgetown, 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
Georgetown, TN

Average snowfall days in December - Georgetown, 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
Georgetown, TN

Average daylight in December / Average sunshine in December - Georgetown, 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
Georgetown, TN

Average sunshine days in December - Georgetown, 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
Georgetown, TN

Average UV index in December - Georgetown, 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
Georgetown, TN

Average cloud cover in December - Georgetown, 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
Georgetown, TN

Average visibility in December - Georgetown, 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).

Georgetown, Tennessee, USA

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