December weather forecastBaton Rouge, LA
December
Weather in December
December in Baton Rouge ushers in the cold festive season. The temperature in December sees a further slump from November, ushering in a chilled and calm atmosphere. While rainfall increases towards the end of the year, the incidence of snow makes a minuscule reappearance. As winter officially sets in, Baton Rouge experiences increased cloud cover compared to November. The city also witnesses the lowest daily hours of sunshine for the year, averaging at 5 hours per day, giving the city a calmer and more peaceful atmosphere.Temperature
The average high-temperature shows a slight dip in December, from November's agreeable 68.4°F (20.2°C) to an enjoyable 61.5°F (16.4°C). Baton Rouge's average low-temperature in December is measured at a chilly 46.4°F (8°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Baton Rouge, during December, the rain falls for 13.4 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Baton Rouge, Louisiana, during the entire year, the rain falls for 177.1 days and collects up to 36.1" (917mm) of precipitation.Snowfall
Months with snowfall in Baton Rouge are January and December. December is the first month it typically snows in Baton Rouge. Throughout December, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 0.5 snowfall days, and 0.51" (13mm) 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 December, sunrise is at 6:44 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:14 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5h 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 reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Baton Rouge, LA
- Average high temperature in December: 61.5°F
The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in December: 46.4°F
The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in December
Baton Rouge, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in December
Baton Rouge, LA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in December
Baton Rouge, LA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Baton Rouge, LA
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Baton Rouge, LA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Baton Rouge, LA
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Baton Rouge, 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).
Average daylight in December /
Average sunshine in December
Baton Rouge, 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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Baton Rouge, LA
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index in December
Baton Rouge, LA
- Average UV index in December: 3
The months with the highest UV index are May, 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
Baton Rouge, LA
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Baton Rouge, LA
- Average visibility in December: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
