December weather forecast
Port Barre, LA

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Weather in December

The first month of the winter, December, is still a mild month in Port Barre, Louisiana, with temperature in the range of an average high of 60.6°F (15.9°C) and an average low of 46.2°F (7.9°C).

Temperature

The onset of December results in a small decrease in the average high-temperature, moderately receding from a comfortable 67.6°F (19.8°C) in November to a mild 60.6°F (15.9°C). Port Barre's nights in December cool down to an average low-temperature of 46.2°F (7.9°C).

Humidity

The average relative humidity in December in Port Barre, Louisiana, is 81%.

Rainfall

In Port Barre, during December, the rain falls for 9.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, in Port Barre, there are 127.3 rainfall days, and 11.65" (296mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Port Barre are January and December. The months with the most snowfall are January and December, with an average 0.04" (1mm) of accumulated snow.

Daylight

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

Sunshine

December has the least sunshine of the year in Port Barre, with an average of 4.9h of sunshine.

UV index

The months with the lowest UV index in Port Barre are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 3 in December translates into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for Port Barre in December?

In Port Barre, 60.6°F (15.9°C) is the average high-temperature and 46.2°F (7.9°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 102.2°F (39°C).

What is the average humidity in December in Port Barre?

In Port Barre, Louisiana, the average relative humidity in December is 81%.

How much does it rain in Port Barre in December?

In Port Barre, in December, it is raining for 9.1 days, with typically 0.98" (25mm) of accumulated precipitation.

When does it snow the most in Port Barre?

The months with the most snowfall in Port Barre are January and December, with an average 0.04" (1mm) of accumulated snow.

When does it start snowing in Port Barre?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Port Barre?

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

How many hours of daylight does Port Barre have in December?

The average day length in December is 10h and 13min.

When are sunrise and sunset in December in Port Barre?

On the first day of December in Port Barre, 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 in Port Barre?

With an average of 4.9h of sunshine, December has the least sunshine of the year in Port Barre.

How long on average sun shines in December in Port Barre?

In December, the average sunshine duration in Port Barre is 4.9h.

What are the months with the lowest UV index in Port Barre?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Port Barre.

What is the UV index intensity in December in Port Barre?

In December, the average daily maximum UV index in Port Barre, Louisiana, is 3. A UV Index reading 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
Port Barre, LA

Average temperature in December - Port Barre, LA
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in December
Port Barre, LA

Average pressure in December - Port Barre, 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).

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Average wind speed in December
Port Barre, LA

Average wind speed in December - Port Barre, LA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (5mph).

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Average humidity in December
Port Barre, LA

Average humidity in December - Port Barre, LA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Port Barre, LA

Average rainfall in December - Port Barre, LA
  • Average rainfall in December: 0.98"

The wettest months (with the highest rainfall) are July and August (1.57").
The driest months (with the least rainfall) are February and March (0.63").

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Average rainfall days in December
Port Barre, LA

Average rainfall days in December - Port Barre, LA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in December
Port Barre, LA

Average snowfall in December - Port Barre, LA
  • Average snowfall in December: 0.04"

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

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Average snowfall days in December
Port Barre, LA

Average snowfall days in December - Port Barre, 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 March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Port Barre, LA

Average daylight in December / Average sunshine in December - Port Barre, 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: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in December
Port Barre, LA

Average sunshine days in December - Port Barre, LA
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (10.7 days).

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Average UV index in December
Port Barre, LA

Average UV index in December - Port Barre, LA
  • Average UV index in December: 3

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

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Average cloud cover in December
Port Barre, LA

Average cloud cover in December - Port Barre, LA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in December
Port Barre, LA

Average visibility in December - Port Barre, LA
  • Average visibility in December: 6mi

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

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Port Barre, Louisiana, USA

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