December weather forecast
Glencliff, TN

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Weather in December

December, the first month of the winter in Glencliff, is also a frosty month, with an average temperature fluctuating between 48.9°F (9.4°C) and 35.6°F (2°C).

Temperature

With the beginning of December, the average high-temperature shows a small decrease, transitioning from a mild 57.4°F (14.1°C) in November to a frosty 48.9°F (9.4°C). The average low-temperature of 35.6°F (2°C) is witnessed in Glencliff during December.

Humidity

December is the most humid month in Glencliff, Tennessee, with an average relative humidity of 78%.

Rainfall

In December, in Glencliff, the rain falls for 11.8 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. In Glencliff, during the entire year, the rain falls for 169.9 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

Months with snowfall in Glencliff are January through April, November and December. In Glencliff, during December, snow falls for 3 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, in Glencliff, Tennessee, there are 14.6 snowfall days, and 2.99" (76mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Glencliff, with an average of 9h and 48min of daylight.
On the first day of December in Glencliff, sunrise is at 6:39 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:42 pm CST.

Sunshine

The average sunshine in December in Glencliff is 4.7h.

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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What is the average December temperature in Glencliff?

The high-temperature, in December, in Glencliff, is 48.9°F (9.4°C), while the low-temperature averages to 35.6°F (2°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the most humid month in Glencliff?

December is the most humid month in Glencliff, Tennessee, with an average relative humidity of 78%.

What is the average humidity in December in Glencliff?

The average relative humidity in December in Glencliff is 78%.

How many days does it rain in December in Glencliff?

In Glencliff, in December, it is raining for 11.8 days, with typically 2.28" (58mm) of accumulated precipitation.

How many days does it snow in December in Glencliff?

In Glencliff, in December, snow falls for 3 days, with typically accumulated 0.35" (9mm) of snow.

What is the month with the shortest days in Glencliff?

December has the shortest days of the year in Glencliff, Tennessee, with an average of 9h and 48min of daylight.

What is the average length of the day in December in Glencliff?

In Glencliff, the average day length in December is 9h and 45min.

When are sunrise and sunset in December in Glencliff?

In December, on the first day of the month, sunrise is at 6:39 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:42 pm CST.

How many hours of sunshine does Glencliff have in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index in Glencliff?

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

How high is the UV index in December in Glencliff?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Glencliff, TN

Average temperature in December - Glencliff, TN
  • Average high temperature in December: 48.9°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in December: 35.6°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in December
Glencliff, TN

Average pressure in December - Glencliff, TN
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in December
Glencliff, TN

Average wind speed in December - Glencliff, TN
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in December
Glencliff, TN

Average humidity in December - Glencliff, TN
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Glencliff, TN

Average rainfall in December - Glencliff, TN
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is November (1.77").

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Average rainfall days in December
Glencliff, TN

Average rainfall days in December - Glencliff, TN
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in December
Glencliff, TN

Average snowfall in December - Glencliff, TN
  • Average snowfall in December: 0.35"

The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Glencliff, TN

Average snowfall days in December - Glencliff, TN
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Glencliff, TN
  • Average daylight in December: 9h and 5min

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 48min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Glencliff, TN

Average sunshine days in December - Glencliff, TN
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in December
Glencliff, TN

Average UV index in December - Glencliff, 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).

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Average cloud cover in December
Glencliff, TN

Average cloud cover in December - Glencliff, TN
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).

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Average visibility in December
Glencliff, TN

Average visibility in December - Glencliff, 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).

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Glencliff, Tennessee, USA

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