December weather forecastThibodaux, LA
December
Weather in December
As the year draws to an end in Thibodaux, Louisiana, the winter chill starts making its presence known. December is characterized by moderate to low temperatures during the day accompanied by cooler nights. The shift in weather pattern pushes down the rainfall to 1.85" (47mm) compared to November. December is also defined by shorter days and reduced sunlight hours. As the cycle renews, January brings with it similar characteristics with slightly lower temperatures.Temperature
Transition into December in Thibodaux subtly marks a drop in the average high-temperature, moderately moving from a pleasant 69.4°F (20.8°C) in November to a refreshing 63.7°F (17.6°C). Throughout the month of December, Thibodaux expects an average low of 50.2°F (10.1°C).Humidity
July through September and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Thibodaux, in December, during 11.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 166.9 rainfall days, and 25.39" (645mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, there are 0.1 snowfall days. Throughout the year, there are 0.4 snowfall days.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 6:41 am and sunset at 5:03 pm. On the last day of December, sunrise is at 6:58 am and sunset at 5:14 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.2h of sunshine.UV index
January, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in December translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thibodaux, LA
- Average high temperature in December: 63.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in December: 50.2°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 (46.2°F).
Average pressure in December
Thibodaux, 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 (29.96"Hg).
Average wind speed in December
Thibodaux, LA
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Thibodaux, LA
- Average humidity in December: 79%
The months with the highest relative humidity are July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Thibodaux, LA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in December
Thibodaux, LA
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).
Average snowfall days in December
Thibodaux, 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 February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Thibodaux, LA
- Average daylight in December: 10h and 18min
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 12min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Thibodaux, LA
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in December
Thibodaux, 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, November and December (UV index 4).
Average cloud cover in December
Thibodaux, LA
- Average cloud cover in December: 45
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in December
Thibodaux, 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).
