December weather forecast
Twelve Cedars, LA

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Weather in December

The first month of the winter, December, is still a comfortable month in Twelve Cedars, Louisiana, with temperature in the range of an average high of 63.7°F (17.6°C) and an average low of 50.2°F (10.1°C).

Temperature

The arrival of December corresponds with a light shift in temperature, down from an agreeable 69.4°F (20.8°C) in November to a comfortable 63.7°F (17.6°C). Throughout December, Twelve Cedars witnesses a consistent average low-temperature of 50.2°F (10.1°C).

Humidity

July through September and December, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Twelve Cedars, in December, it is raining for 11.8 days, with typically 1.85" (47mm) of accumulated precipitation. In Twelve Cedars, during the entire year, the rain falls for 166.9 days and collects up to 25.39" (645mm) of precipitation.

Snowfall

Months with snowfall in Twelve Cedars are January and December. December is the first month it typically snows. Throughout December, there are 0.1 snowfall days. In Twelve Cedars, during the entire year, snow falls for 0.4 days.

Daylight

With an average of 10h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:41 am and sunset at 5:03 pm. On the last day of December, sunrise is at 6:58 am and sunset at 5:14 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.2h of sunshine.

UV index

January, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during December leads to these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

What is the usual temperature for Twelve Cedars in December?

The average high-temperature, in December, in Twelve Cedars, is 63.7°F (17.6°C), while the average low-temperature is 50.2°F (10.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is calculated to be 102.2°F (39°C).

What are the most humid months?

July through September and December, with an average relative humidity of 79%, are most humid months.

What is the average humidity in December?

In Twelve Cedars, the average relative humidity in December is 79%.

How many days does it rain in December?

In December, the rain falls for 11.8 days. Throughout December, 1.85" (47mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows in Twelve Cedars. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days?

With an average of 10h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 10h and 16min.

When are sunrise and sunset in December in Twelve Cedars?

In December, on the first day of the month, sunrise is at 6:41 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Twelve Cedars?

December has the least sunshine of the year, with an average of 5.2h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.2h.

When is the lowest UV index?

The months with the lowest UV index in Twelve Cedars are January, November and December, with an average maximum UV index of 4.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Twelve Cedars, LA

Average temperature in December - Twelve Cedars, LA
  • Average high temperature in December: 63.7°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).

  • Average low temperature in December: 50.2°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).

Average pressure in December
Twelve Cedars, LA

Average pressure in December - Twelve Cedars, LA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Twelve Cedars, LA

Average wind speed in December - Twelve Cedars, LA
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Twelve Cedars, LA

Average humidity in December - Twelve Cedars, LA
  • Average humidity in December: 79%

The months with the highest relative humidity are July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Twelve Cedars, LA

Average rainfall in December - Twelve Cedars, LA
  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in December
Twelve Cedars, LA

Average rainfall days in December - Twelve Cedars, LA
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).

Average snowfall days in December
Twelve Cedars, LA

Average snowfall days in December - Twelve Cedars, LA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Twelve Cedars, LA

Average daylight in December / Average sunshine in December - Twelve Cedars, LA
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in December
Twelve Cedars, LA

Average sunshine days in December - Twelve Cedars, LA
  • Average sunshine days in December: 17 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in December
Twelve Cedars, LA

Average UV index in December - Twelve Cedars, LA
  • Average UV index in December: 4

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in December
Twelve Cedars, LA

Average cloud cover in December - Twelve Cedars, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in December
Twelve Cedars, LA

Average visibility in December - Twelve Cedars, LA
  • 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).

Twelve Cedars, Louisiana, USA

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