Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Port Fourchon's average high-temperature in December sits at a comfortable 64.9°F (18.3°C), showing little difference from the previous month. Port Fourchon records a negligible downturn from daytime temperatures, averaging a low of 56.7°F (13.7°C) in the month of December.Humidity
February and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Port Fourchon, in December, it is raining for 11.9 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 151.9 rainfall days, and 22.01" (559mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 6:37 am and sunset at 5:02 pm. On the last day of December, sunrise is at 6:54 am and sunset at 5:13 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during December morphs into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What are the most humid months in Port Fourchon?
What is the average humidity in December?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Port Fourchon have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Port Fourchon have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Port Fourchon, LA
- Average high temperature in December: 64.9°F
The warmest months (with the highest average high temperature) are July and August (86.9°F).
The month with the lowest average high temperature is January (61.7°F).
- Average low temperature in December: 56.7°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (53.1°F).
Average pressure in December
Port Fourchon, LA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Port Fourchon, LA
- Average wind speed in December: 12.2mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Port Fourchon, LA
- Average humidity in December: 78%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Port Fourchon, LA
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and April (0.87").
Average rainfall days in December
Port Fourchon, LA
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.5 days).
Average snowfall days in December
Port Fourchon, LA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Port Fourchon, LA
- Average daylight in December: 10h and 2min
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 2min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Port Fourchon, LA
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in December
Port Fourchon, 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 and December (UV index 4).
Average cloud cover in December
Port Fourchon, LA
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in December
Port Fourchon, 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).
Port Fourchon, Louisiana, USA
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