December weather forecast and climate
Baton Rouge, LA

Manicured lawns and beautiful trees approaching the State Capitol building in Baton Rouge, Louisiana
Manicured lawns and beautiful trees approaching the State Capitol building in Baton Rouge, Louisiana

Weather in December

December, the first month of the winter, in Baton Rouge, is still a comfortable month, with average temperature fluctuating between 46.4°F (8°C) and 61.5°F (16.4°C).

Temperature

In Baton Rouge, the average high-temperature in December marginally drops, from a pleasant 68.4°F (20.2°C) in November, to a comfortable 61.5°F (16.4°C). The average low-temperature, in December, is 46.4°F (8°C).

Humidity

In December, the average relative humidity in Baton Rouge is 81%.

Rainfall

In Baton Rouge, it is raining for 13.4 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, in Baton Rouge, there are 177.1 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

Months with snowfall 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. In Baton Rouge, during the entire year, snow falls for 0.5 days, and aggregates up to 0.51" (13mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10.2h of daylight.

Sunshine

The month with the least sunshine in Baton Rouge is December, with an average of 5h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Baton Rouge. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Baton Rouge?

In December, in Baton Rouge, the average high-temperature is 61.5°F (16.4°C), and the average low-temperature is 46.4°F (8°C).

What is the average humidity in December in Baton Rouge?

The average relative humidity in December in Baton Rouge, Louisiana, is 81%.

How much does it rain in Baton Rouge in December?

In December, in Baton Rouge, Louisiana, the rain falls for 13.4 days. Throughout December, 3.35" (85mm) of precipitation is accumulated.

When does it start to snow in Baton Rouge?

December is the first month it typically snows in Baton Rouge, Louisiana. Throughout December, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow.

What is the month with the shortest days in Baton Rouge?

December has the shortest days of the year in Baton Rouge, with an average of 10.2h of daylight.

What is the average length of the day in December in Baton Rouge?

In Baton Rouge, the average length of the day in December is 10.2h.

What is the month with the least sunshine in Baton Rouge?

The month with the least sunshine is December, with an average of 5h of sunshine.

How many hours of sunshine does Baton Rouge have in December?

In December, the average sunshine is 5h.

What are the months with the lowest UV index in Baton Rouge?

Months with the lowest UV index are January and December, with an average maximum UV index of 3.

How high is the UV index in December in Baton Rouge?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Baton Rouge, LA

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).

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Average pressure in December
Baton Rouge, LA

Average pressure in December - Baton Rouge, LA
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.96").

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Average wind speed in December
Baton Rouge, LA

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).

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Average humidity in December
Baton Rouge, LA

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%).

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Average rainfall in December
Baton Rouge, LA

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").

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Average rainfall days in December
Baton Rouge, LA

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).

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Average snowfall in December
Baton Rouge, LA

Average snowfall in December - Baton Rouge, LA
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.28").
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
Baton Rouge, LA

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).
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
Baton Rouge, LA

Average daylight in December / Average sunshine in December - Baton Rouge, LA
  • Average daylight in December: 10.2h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in December: 5h

The month with the most sunshine is June (Average sunshine: 10.2h).
The month with the least sunshine is December (Average sunshine: 5h).

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Average sunshine days in December
Baton Rouge, LA

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).
Months with the least sunshine days are July and August (7.3 days).

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Average UV index in December
Baton Rouge, LA

Average UV index in December - Baton Rouge, LA
  • Average UV index in December: 3

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

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Average cloud cover in December
Baton Rouge, LA

Average cloud cover in December - Baton Rouge, LA
  • Average cloud cover in December: 50

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).

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Average visibility in December
Baton Rouge, LA

Average visibility in December - Baton Rouge, LA
  • Average visibility in December: 5mi

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

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