December weather forecast
Castaway Cove, TN

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Weather in December

December, the first month of the winter in Castaway Cove, is also a frosty month, with an average temperature fluctuating between 35.4°F (1.9°C) and 49.1°F (9.5°C).

Temperature

Start of December brings a slight shift in the average high-temperature, dipping a bit from November's moderate 57°F (13.9°C) to a chilly 49.1°F (9.5°C). Castaway Cove throughout December, records an average low-temperature of 35.4°F (1.9°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In December, the rain falls for 14.2 days. Throughout December, 3.86" (98mm) of precipitation is accumulated. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Castaway Cove, during December, snow falls for 3.5 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, in Castaway Cove, there are 19 snowfall days, and 5.59" (142mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Castaway Cove, Tennessee.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:33 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What are the temperatures in Castaway Cove in December?

December temperatures in Castaway Cove vary between a high-temperature of 49.1°F (9.5°C) and a low-temperature of 35.4°F (1.9°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 86°F (30°C).

What is the most humid month in Castaway Cove?

December is the most humid month in Castaway Cove, with an average relative humidity of 79%.

What is the average humidity in December in Castaway Cove?

The average relative humidity in December in Castaway Cove, Tennessee, is 79%.

How much does it rain in Castaway Cove in December?

In December, in Castaway Cove, the rain falls for 14.2 days. Throughout December, 3.86" (98mm) of precipitation is accumulated.

How many days does it snow in December in Castaway Cove?

In Castaway Cove, in December, during 3.5 snowfall days, 0.83" (21mm) of snow is typically accumulated.

What is the month with the shortest days in Castaway Cove?

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

What is the average length of the day in December in Castaway Cove?

In Castaway Cove, the average day length in December is 9h and 47min.

When is the sunrise / sunset in December in Castaway Cove?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of the month, in Castaway Cove, Tennessee, sunrise is at 7:46 am and sunset at 5:33 pm EST.

How long on average sun shines in December in Castaway Cove?

The average sunshine duration in December in Castaway Cove, Tennessee, is 5.2h.

What is the month with the lowest UV index in Castaway Cove?

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

What is the UV index reading in December in Castaway Cove?

In December, the average daily maximum UV index in Castaway Cove, Tennessee, is 2. A UV Index estimate of 2, and below, represents 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
Castaway Cove, TN

Average temperature in December - Castaway Cove, TN
  • Average high temperature in December: 49.1°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 (44.8°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in December
Castaway Cove, TN

Average pressure in December - Castaway Cove, 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).

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Average wind speed in December
Castaway Cove, TN

Average wind speed in December - Castaway Cove, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in December
Castaway Cove, TN

Average humidity in December - Castaway Cove, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in December
Castaway Cove, TN

Average rainfall in December - Castaway Cove, TN
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Castaway Cove, TN

Average rainfall days in December - Castaway Cove, TN
  • Average rainfall days in December: 14.2 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall in December
Castaway Cove, TN

Average snowfall in December - Castaway Cove, TN
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Castaway Cove, TN

Average snowfall days in December - Castaway Cove, TN
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (5.5 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
Castaway Cove, TN

Average daylight in December / Average sunshine in December - Castaway Cove, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in December
Castaway Cove, TN

Average sunshine days in December - Castaway Cove, TN
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in December
Castaway Cove, TN

Average UV index in December - Castaway Cove, 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
Castaway Cove, TN

Average cloud cover in December - Castaway Cove, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in December
Castaway Cove, TN

Average visibility in December - Castaway Cove, TN
  • Average visibility in December: 6mi

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

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Castaway Cove, Tennessee, USA

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