December weather forecast
Unicoi, TN

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Weather in December

December, the first month of the winter in Unicoi, is also a frosty month, with an average temperature fluctuating between 31.6°F (-0.2°C) and 46.2°F (7.9°C).

Temperature

Unicoi's transition into December involves a gentle shift in temperature, receding from a fresh 54°F (12.2°C) in November to a chilly 46.2°F (7.9°C). An average temperature of 31.6°F (-0.2°C) marks the nights in December.

Humidity

February and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In December, the rain falls for 11.5 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. In Unicoi, during the entire year, the rain falls for 173.4 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 4.5 days and typically aggregates up to 3.7" (94mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in December is 5.3h.

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 low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Unicoi in December?

The average high-temperature and low-temperature during December are 46.2°F (7.9°C) and 31.6°F (-0.2°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What are the most humid months?

February and December, with an average relative humidity of 80%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in Unicoi in December?

In Unicoi, during December, the rain falls for 11.5 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 4.5 days and accumulates 3.7" (94mm) of snow.

How many days does it snow in December?

In Unicoi, in December, snow falls for 4.5 days, with typically accumulated 3.7" (94mm) of snow.

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.

What is the average length of the day in December?

The average day length in December is 9h and 45min.

When is the sunrise / sunset in December in Unicoi?

On the first day of December, sunrise is at 7:22 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:25 pm EST.

How long on average sun shines in December in Unicoi?

The average sunshine duration in December is 5.3h.

What are the months with 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?

In Unicoi, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Unicoi, TN

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Unicoi, TN

Average pressure in December - Unicoi, TN
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Unicoi, TN

Average wind speed in December - Unicoi, TN
  • Average wind speed in December: 5.9mph

The windiest months (with the highest average wind speed) are January, February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in December
Unicoi, TN

Average humidity in December - Unicoi, TN
  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Unicoi, TN

Average rainfall in December - Unicoi, TN
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Unicoi, TN

Average rainfall days in December - Unicoi, TN
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in December
Unicoi, TN

Average snowfall in December - Unicoi, TN
  • Average snowfall in December: 3.7"

The month with the highest snowfall is December (3.7").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Unicoi, TN

Average snowfall days in December - Unicoi, TN
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Unicoi, TN

Average daylight in December / Average sunshine in December - Unicoi, 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: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Unicoi, TN

Average sunshine days in December - Unicoi, TN
  • Average sunshine days in December: 15.1 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in December
Unicoi, TN

Average UV index in December - Unicoi, TN
  • Average UV index in December: 2

The months with the highest UV index are June 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
Unicoi, TN

Average cloud cover in December - Unicoi, TN
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 34).

Average visibility in December
Unicoi, TN

Average visibility in December - Unicoi, TN
  • Average visibility in December: 5mi

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

Unicoi, Tennessee, USA

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