December weather forecast
Mer Rouge, LA

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Weather in December

December, the first month of the winter in Mer Rouge, is still a mild month, with temperature in the range of an average high of 56.1°F (13.4°C) and an average low of 42.1°F (5.6°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's 63.9°F (17.7°C) to a still refreshing 56.1°F (13.4°C). During the December nights, an average temperature of 42.1°F (5.6°C) is observed.

Humidity

In Mer Rouge, the average relative humidity in December is 80%.

Rainfall

In Mer Rouge, in December, it is raining for 12.5 days, with typically 3.31" (84mm) of accumulated precipitation. In Mer Rouge, during the entire year, the rain falls for 153.5 days and collects up to 36.14" (918mm) of precipitation.

Snowfall

In Mer Rouge, Louisiana, snow does not fall in April through December.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:52 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:11 pm CST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 3 in December transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

What are December temperatures?

During December, Mer Rouge experiences an average high-temperature of 56.1°F (13.4°C) and a low-temperature of 42.1°F (5.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 98.6°F (37°C).

What is the average humidity in December in Mer Rouge?

In December, the average relative humidity in Mer Rouge is 80%.

How much does it rain in December?

In Mer Rouge, during December, the rain falls for 12.5 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow?

April through December are months without snowfall.

Does it snow in December?

In Mer Rouge, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

The average day length in December is 10h and 2min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:11 pm CST.

How many hours of sunshine does Mer Rouge have in December?

In December, the average sunshine duration is 5.1h.

When is the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mer Rouge, LA

Average temperature in December - Mer Rouge, LA
  • Average high temperature in December: 56.1°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in December: 42.1°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in December
Mer Rouge, LA

Average pressure in December - Mer Rouge, LA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Mer Rouge, LA

Average wind speed in December - Mer Rouge, LA
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).

Average humidity in December
Mer Rouge, LA

Average humidity in December - Mer Rouge, LA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Mer Rouge, LA

Average rainfall in December - Mer Rouge, LA
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in December
Mer Rouge, LA

Average rainfall days in December - Mer Rouge, LA
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Mer Rouge, LA

Average snowfall in December - Mer Rouge, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Mer Rouge, LA

Average snowfall days in December - Mer Rouge, LA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Mer Rouge, LA

Average daylight in December / Average sunshine in December - Mer Rouge, LA
  • Average daylight in December: 10h and 0min

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

  • 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 February (Average sunshine: 4h and 48min).

Average sunshine days in December
Mer Rouge, LA

Average sunshine days in December - Mer Rouge, LA
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is February (13.1 days).

Average UV index in December
Mer Rouge, LA

Average UV index in December - Mer Rouge, LA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Mer Rouge, LA

Average cloud cover in December - Mer Rouge, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in December
Mer Rouge, LA

Average visibility in December - Mer Rouge, 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).

Mer Rouge, Louisiana, USA

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