December weather forecast
Land Mark, TN

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Weather in December

December, the first month of the winter in Land Mark, is also a frosty month, with an average temperature fluctuating between 48.9°F (9.4°C) and 35.8°F (2.1°C).

Temperature

The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderate 57.4°F (14.1°C) in November to a chilly 48.9°F (9.4°C). In the month of December, the temperature generally rests at an average low of 35.8°F (2.1°C).

Humidity

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

Rainfall

In December, the rain falls for 11.7 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. In Land Mark, during the entire year, the rain falls for 166.2 days and collects up to 33.86" (860mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, it is snowing for 2 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, there are 9.7 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 6:40 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:43 pm CST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Land Mark in December?

An average high-temperature, in December, in Land Mark, is 48.9°F (9.4°C) and the average low-temperature is 35.8°F (2.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In December, the rain falls for 11.7 days. Throughout December, 2.56" (65mm) of precipitation is accumulated.

How many days does it snow in December?

In Land Mark, during December, snow falls for 2 days and regularly aggregates up to 0.55" (14mm) of snow.

What is the month with the shortest days?

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 December, the average day length in Land Mark is 9h and 46min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:40 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:43 pm CST.

How long on average sun shines in December?

In Land Mark, the average sunshine duration in December is 4.6h.

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 Land Mark, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Land Mark, TN

Average temperature in December - Land Mark, 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 (45°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Land Mark, TN

Average pressure in December - Land Mark, 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).

Average wind speed in December
Land Mark, TN

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

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

Average humidity in December
Land Mark, TN

Average humidity in December - Land Mark, TN
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June and October (73%).

Average rainfall in December
Land Mark, TN

Average rainfall in December - Land Mark, TN
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in December
Land Mark, TN

Average rainfall days in December - Land Mark, TN
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in December
Land Mark, TN

Average snowfall in December - Land Mark, TN
  • Average snowfall in December: 0.55"

The month with the highest snowfall is March (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Land Mark, TN

Average snowfall days in December - Land Mark, TN
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (3.2 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
Land Mark, TN

Average daylight in December / Average sunshine in December - Land Mark, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Land Mark, TN

Average sunshine days in December - Land Mark, TN
  • Average sunshine days in December: 17 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Land Mark, TN

Average UV index in December - Land Mark, 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
Land Mark, TN

Average cloud cover in December - Land Mark, TN
  • Average cloud cover in December: 52

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

Average visibility in December
Land Mark, TN

Average visibility in December - Land Mark, 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).

Land Mark, Tennessee, USA

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