December weather forecastSupreme, LA

December

Weather in December

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

Temperature

As Supreme enters December, the average high-temperature subtly lowers from the a pleasant 69.4°F (20.8°C) of November to a refreshing 63.7°F (17.6°C). Supreme sees an average low-temperature of 50.2°F (10.1°C) during December.

Humidity

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

Rainfall

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

Snowfall

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

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 6:42 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:15 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 4 during December translates into the following guidance:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Supreme, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 50.2°F (10.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 102.2°F (39°C).

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

The average relative humidity in December is 79%.

In Supreme, in December, during 11.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

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

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

In Supreme, the average day length in December is 10h and 16min.

On the first day of December, sunrise is at 6:42 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:15 pm CST.

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

In December, the average sunshine duration is 5.2h.

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

The average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, LA

  • Average daylight in December: 10h and 18min

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 12min

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
Supreme, 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
Supreme, 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
Supreme, 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
Supreme, 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).