December weather forecast
Garyville, LA

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Weather in December

December, the first month of the winter in Garyville, is still a refreshing month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 50°F (10°C).

Temperature

The arrival of December correlates with a minor temperature reduction, down from November's pleasant 68.9°F (20.5°C) to an enjoyable 63.3°F (17.4°C). In the month of December, Garyville records a consistent average low-temperature of 50°F (10°C).

Humidity

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

Rainfall

In Garyville, in December, it is raining for 12.7 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, in Garyville, there are 174 rainfall days, and 34.76" (883mm) of precipitation is accumulated.

Snowfall

In Garyville, Louisiana, snow does not fall in February through December.

Daylight

The month with the shortest days is December, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:41 am and sunset at 5:02 pm. On the last day of December, in Garyville, sunrise is at 6:58 am and sunset at 5:13 pm CST.

Sunshine

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

UV index

The month with the lowest UV index in Garyville, Louisiana, is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 3 during December translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in December in Garyville?

An average high-temperature, in December, in Garyville, is 63.3°F (17.4°C) and the average low-temperature is 50°F (10°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 102.2°F (39°C).

What is the most humid month in Garyville?

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

What is the average humidity in December in Garyville?

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

How much does it rain in Garyville in December?

In Garyville, during December, the rain falls for 12.7 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Garyville?

In Garyville, Louisiana, snow does not fall in February through December.

Does it snow in Garyville in December?

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

What is the month with the shortest days in Garyville?

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 Garyville?

The average day length in December is 10h and 15min.

When are sunrise and sunset in December in Garyville?

On the first day of December, sunrise is at 6:41 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:13 pm CST.

What is the month with the least sunshine in Garyville?

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

How long on average sun shines in December in Garyville?

The average sunshine duration in December in Garyville is 5h.

When is the lowest UV index in Garyville?

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

What is the UV index reading in December in Garyville?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Garyville, LA

Average temperature in December - Garyville, 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).

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Average pressure in December
Garyville, LA

Average pressure in December - Garyville, 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).

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Average wind speed in December
Garyville, LA

Average wind speed in December - Garyville, 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).

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Average humidity in December
Garyville, LA

Average humidity in December - Garyville, 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%).

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Average rainfall in December
Garyville, LA

Average rainfall in December - Garyville, 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").

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Average rainfall days in December
Garyville, LA

Average rainfall days in December - Garyville, 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).

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Average snowfall in December
Garyville, LA

Average snowfall in December - Garyville, 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").

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Average snowfall days in December
Garyville, LA

Average snowfall days in December - Garyville, 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).

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

Average daylight in December / Average sunshine in December - Garyville, 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).

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Average sunshine days in December
Garyville, LA

Average sunshine days in December - Garyville, 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).

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Average UV index in December
Garyville, LA

Average UV index in December - Garyville, 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).

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Average cloud cover in December
Garyville, LA

Average cloud cover in December - Garyville, 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).

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Average visibility in December
Garyville, LA

Average visibility in December - Garyville, 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).

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Garyville, Louisiana, USA

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