December weather forecast
Garyville, LA

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Weather in December

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

Temperature

Garyville's transition into December involves a gentle shift in temperature, receding from an agreeable 68.9°F (20.5°C) in November to a refreshing 63.3°F (17.4°C). In Garyville, December's nights observe an average temperature dip to a fresh 50°F (10°C).

Humidity

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

Rainfall

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

Snowfall

In Garyville, 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 6:41 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.

Sunshine

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

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 3 in December leads to these recommendations:
Take precautions - Protection against sunburn is recommended. It's recommended to limit sun exposure when its radiation is at its peak during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

What is the temperature in December?

During December, Garyville experiences an average high-temperature of 63.3°F (17.4°C) and a low-temperature of 50°F (10°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 102.2°F (39°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Garyville, Louisiana, 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 Garyville, 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 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.

What time are sunrise and sunset in December in Garyville?

In December, on the first day of the month, 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?

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

How many hours of sunshine does Garyville have in December?

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

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Garyville, Louisiana, USA

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