December weather forecast
LaPlace, LA

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Weather in December

The first month of the winter, December, is still a comfortable month in LaPlace, Louisiana, with an average temperature ranging between max 63.3°F (17.4°C) and min 50°F (10°C).

Temperature

As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from an agreeable 68.9°F (20.5°C) to a refreshing 63.3°F (17.4°C). LaPlace observes an average low-temperature of 50°F (10°C) during December.

Humidity

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

Rainfall

In December, the rain falls for 12.7 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. In LaPlace, during the entire year, the rain falls for 174 days and collects up to 34.76" (883mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year in LaPlace.
On the first day of the month, sunrise is at 6:40 am and sunset at 5:01 pm. On the last day of December, sunrise is at 6:57 am and sunset at 5:12 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 5h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. 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. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

The average high-temperature and low-temperature during December are 63.3°F (17.4°C) and 50°F (10°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 102.2°F (39°C).

What are the most humid months in LaPlace?

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

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December?

In LaPlace, in December, it is raining for 12.7 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow?

February through December are months without snowfall.

Does it snow in December?

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

What is the month with the shortest days?

With an average of 10h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In LaPlace, the average day length in December is 10h and 15min.

When is the sunrise / sunset in December in LaPlace?

In December, on the first day of the month, sunrise is at 6:40 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:12 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5h of sunshine.

How many hours of sunshine does LaPlace have in December?

In LaPlace, the average sunshine duration in December is 5h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 3.

What is the UV index reading in December in LaPlace?

In LaPlace, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
LaPlace, LA

Average temperature in December - LaPlace, LA
  • Average high temperature in December: 63.3°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 50°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°F).

Average pressure in December
LaPlace, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

Average wind speed in December
LaPlace, LA

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

The windiest months (with the highest average wind speed) are January, February and April (8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

Average humidity in December
LaPlace, LA

Average humidity in December - LaPlace, LA
  • Average humidity in December: 79%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
LaPlace, LA

Average rainfall in December - LaPlace, LA
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is July (5.55").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in December
LaPlace, LA

Average rainfall days in December - LaPlace, LA
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in December
LaPlace, LA

Average snowfall in December - LaPlace, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
LaPlace, LA

Average snowfall days in December - LaPlace, LA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.2 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
LaPlace, LA

Average daylight in December / Average sunshine in December - LaPlace, LA
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
LaPlace, LA

Average sunshine days in December - LaPlace, LA
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (6 days).

Average UV index in December
LaPlace, LA

Average UV index in December - LaPlace, LA
  • Average UV index in December: 3

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

Average cloud cover in December
LaPlace, LA

Average cloud cover in December - LaPlace, LA
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).

Average visibility in December
LaPlace, LA

Average visibility in December - LaPlace, 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).

LaPlace, Louisiana, USA

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