December weather forecast
Forest Heights, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Forest Heights, Tennessee, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 49.3°F (9.6°C).

Temperature

Forest Heights's weather subtly changes with the onset of December, barely falling from a refreshing 57°F (13.9°C) in November to a frosty 49.3°F (9.6°C). Forest Heights observes an average low-temperature of 35.4°F (1.9°C) during December.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 79%.

Rainfall

In December, the rain falls for 8.8 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Forest Heights, during the entire year, the rain falls for 117.7 days and collects up to 11.34" (288mm) of precipitation.

Snowfall

Months with snowfall in Forest Heights are January through March, October through December. In December, it is snowing for 2.4 days. Throughout December, 0.2" (5mm) of snow is accumulated. Throughout the year, in Forest Heights, there are 13.1 snowfall days, and 1.38" (35mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Forest Heights, Tennessee, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:29 am and sunset at 5:23 pm. On the last day of December, in Forest Heights, sunrise is at 7:46 am and sunset at 5:33 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

The months with the lowest UV index in Forest Heights are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What is the average December temperature in Forest Heights?

In December, the average high-temperature and low-temperature in Forest Heights are 49.3°F (9.6°C) and 35.4°F (1.9°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 84.2°F (29°C).

What are the most humid months in Forest Heights?

The months with the highest humidity are February and December, with an average relative humidity of 79%.

What is the average humidity in December in Forest Heights?

The average relative humidity in December in Forest Heights is 79%.

How many days does it rain in December in Forest Heights?

In Forest Heights, in December, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation.

How many days does it snow in December in Forest Heights?

In Forest Heights, in December, snow falls for 2.4 days, with typically accumulated 0.2" (5mm) of snow.

What is the month with the shortest days in Forest Heights?

The month with the shortest days in Forest Heights, Tennessee, is December, with an average of 9h and 48min of daylight.

How many hours of daylight does Forest Heights have in December?

The average day length in December in Forest Heights is 9h and 47min.

When is the sunrise / sunset in December in Forest Heights?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 5:23 pm. On the last day of the month, in Forest Heights, Tennessee, sunrise is at 7:46 am and sunset at 5:33 pm EST.

How many hours of sunshine does Forest Heights have in December?

In December, the average sunshine duration in Forest Heights is 5.2h.

What is the month with the lowest UV index in Forest Heights?

January, February 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 Forest Heights?

The average daily maximum UV index in December in Forest Heights is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
Forest Heights, TN

Average temperature in December - Forest Heights, TN
  • Average high temperature in December: 49.3°F

The warmest month (with the highest average high temperature) is July (87.4°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 (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).

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Average pressure in December
Forest Heights, TN

Average pressure in December - Forest Heights, 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
Forest Heights, TN

Average wind speed in December - Forest Heights, TN
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in December
Forest Heights, TN

Average humidity in December - Forest Heights, TN
  • Average humidity in December: 79%

The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).

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Average rainfall in December
Forest Heights, TN

Average rainfall in December - Forest Heights, TN
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in December
Forest Heights, TN

Average rainfall days in December - Forest Heights, TN
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in December
Forest Heights, TN

Average snowfall in December - Forest Heights, TN
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in December
Forest Heights, TN

Average snowfall days in December - Forest Heights, TN
  • Average snowfall days in December: 2.4 days

The months with the highest number of snowfall days are January and February (3.7 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
Forest Heights, TN

Average daylight in December / Average sunshine in December - Forest Heights, 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
Forest Heights, TN

Average sunshine days in December - Forest Heights, TN
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is October (21.5 days).
The months with the least sunshine days are February and July (15.9 days).

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Average UV index in December
Forest Heights, TN

Average UV index in December - Forest Heights, 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
Forest Heights, TN

Average cloud cover in December - Forest Heights, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in December
Forest Heights, TN

Average visibility in December - Forest Heights, TN
  • Average visibility in December: 6mi

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

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Forest Heights, Tennessee, USA

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