Baton Rouge
Louisiana, USA
Long-term weather forecast
Long-term weather forecast

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
December, the first month of the winter, in Baton Rouge, is also an enjoyable month, with average temperature varying between 61.5°F (16.4°C) and 46.4°F (8°C).

Temperature

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

Humidity

The average relative humidity in Baton Rouge is 81%.

Rainfall

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

Snowfall

January and December are months with snowfall. 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

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

Sunshine

With an average of 5h of sunshine, December has the least sunshine of the year.

UV index

Months with the lowest UV index in Baton Rouge, Louisiana, are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

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 many days does it rain in December in Baton Rouge?

In Baton Rouge, Louisiana, in December, during 13.4 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

When does it start to snow in Baton Rouge?

December is the first month it typically snows. 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?

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

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

The average length of the day in December is 10.2h.

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

December has the least sunshine of the year in Baton Rouge, Louisiana, with an average of 5h of sunshine.

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

In Baton Rouge, Louisiana, the average sunshine in December is 5h.

When is the lowest UV index in Baton Rouge?

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

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

In Baton Rouge, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in December - Baton Rouge, LA
  • Average high temperature in December: 16.4°C

Warmest months (with the highest average high temperature) are July and August (33.3°C).
The month with the lowest average high temperature is January (14.8°C).

  • Average low temperature in December: 8°C

The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (5.8°C).

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: 85mm

The wettest month (with the highest rainfall) is July (120mm).
The driest month (with the lowest rainfall) is November (45mm).

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 lowest number of rainy days is November (8.8 days).

Average snowfall in December - Baton Rouge, LA
  • Average snowfall in December: 6mm

The month with the highest snowfall is January (7mm).
Months with the lowest snowfall are February, March, April, May, June, July, August, September, October and November (0mm).

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 lowest number of 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: 10.2h

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

  • Average sunshine in December: 5h

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

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).