December weather forecastCastor Plunge, LA
December
Weather in December
The first month of the winter, December, is still a mild month in Castor Plunge, Louisiana, with an average temperature varying between 58.6°F (14.8°C) and 44.1°F (6.7°C).Temperature
December's arrival subtly correlates with a reduction in the average high-temperature, down from a comfortable 66.7°F (19.3°C) in November to a mild 58.6°F (14.8°C). During December, Castor Plunge observes a consistent average nighttime temperature of 44.1°F (6.7°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 82%.Rainfall
In December, in Castor Plunge, the rain falls for 13.4 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 164.9 rainfall days, and 35.43" (900mm) of precipitation is accumulated.Snowfall
January, February and December are months with snowfall in Castor Plunge. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 1.2 snowfall days, and 0.63" (16mm) of snow is accumulated.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:51 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:18 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 3 during December leads to these advisories:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castor Plunge, LA
- Average high temperature in December: 58.6°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in December: 44.1°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in December
Castor Plunge, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Castor Plunge, LA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July, August and September (5mph).
Average humidity in December
Castor Plunge, LA
- Average humidity in December: 82%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Castor Plunge, LA
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Castor Plunge, LA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (9.9 days).
Average snowfall in December
Castor Plunge, LA
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Castor Plunge, LA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Castor Plunge, LA
- Average daylight in December: 10h and 12min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Castor Plunge, LA
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Castor Plunge, 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).
Average cloud cover in December
Castor Plunge, LA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Castor Plunge, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, June, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, July, August and September (5mi).
