December weather forecast
Leonville, LA

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Weather in December

December, the first month of the winter in Leonville, is still a comfortable month, with an average temperature ranging between min 47.1°F (8.4°C) and max 61.5°F (16.4°C).

Temperature

A mild shift in the average high-temperature occurs in December, reducing from a pleasant 68°F (20°C) in November to an enjoyable 61.5°F (16.4°C). Leonville records an average nighttime low-temperature of 47.1°F (8.4°C) throughout December.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Leonville, during December, the rain falls for 11.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Leonville, during the entire year, the rain falls for 157.2 days and collects up to 24.69" (627mm) of precipitation.

Snowfall

In Leonville, snow does not fall in February through December.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:47 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:17 pm CST.

Sunshine

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

UV index

December is the month with the lowest UV index in Leonville, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

In December, the average high-temperature and low-temperature are 61.5°F (16.4°C) and 47.1°F (8.4°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 102.2°F (39°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In December, the rain falls for 11.5 days. Throughout December, 1.89" (48mm) of precipitation is accumulated.

When it does not snow?

In Leonville, snow does not fall in February through December.

Does it snow in December?

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

What is the month with the shortest days in Leonville?

The month with the shortest days is December, with an average of 10h and 12min of daylight.

What is the average length of the day in December?

In Leonville, the average day length in December is 10h and 13min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:47 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:17 pm CST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

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

When is the lowest UV index?

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

What is the UV index intensity in December?

In Leonville, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Leonville, LA

Average temperature in December - Leonville, LA
  • Average high temperature in December: 61.5°F

The warmest months (with the highest average high temperature) are July and August (90.5°F).
The month with the lowest average high temperature is January (58.3°F).

  • Average low temperature in December: 47.1°F

The months with the highest average low temperature are July and August (73.9°F).
The coldest month (with the lowest average low temperature) is January (43°F).

Average pressure in December
Leonville, LA

Average pressure in December - Leonville, 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 (29.95"Hg).

Average wind speed in December
Leonville, LA

Average wind speed in December - Leonville, LA
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in December
Leonville, LA

Average humidity in December - Leonville, LA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Leonville, LA

Average rainfall in December - Leonville, LA
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is November (1.46").

Average rainfall days in December
Leonville, LA

Average rainfall days in December - Leonville, LA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in December
Leonville, LA

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

The month with the highest snowfall is January (0.08").
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
Leonville, LA

Average snowfall days in December - Leonville, LA
  • Average snowfall days in December: 0 days

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

Average daylight in December /
Average sunshine in December
Leonville, LA

Average daylight in December / Average sunshine in December - Leonville, 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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Leonville, LA

Average sunshine days in December - Leonville, LA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is August (9.4 days).

Average UV index in December
Leonville, LA

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

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

Average cloud cover in December
Leonville, LA

Average cloud cover in December - Leonville, LA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in December
Leonville, LA

Average visibility in December - Leonville, LA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).

Leonville, Louisiana, USA

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