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

What is the temperature in December in Baton Rouge?

In Baton Rouge, Louisiana, in December, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 42.6°F (5.9°C).

How many days does it rain in December in Baton Rouge?

In Baton Rouge, during December, the rain falls for 9.1 days and regularly aggregates up to 5.6" (142.2mm) of precipitation.
Average temperature in December - Baton Rouge, LA
  • Average high temperature in December: 17.8°C

The warmest month (with the highest average high temperature) is August (33.6°C).
The month with the lowest average high temperature is January (16.8°C).

  • Average low temperature in December: 5.9°C

The month with the highest average low temperature is July (23.2°C).
The coldest month (with the lowest average low temperature) is January (5.1°C).

Average humidity in December - Baton Rouge, LA
  • Average humidity in December: 73.5%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (62%).

Average rainfall in December - Baton Rouge, LA
  • Average rainfall in December: 142.2mm

The wettest month (with the highest rainfall) is June (162.8mm).
The driest month (with the lowest rainfall) is November (104.1mm).

Average rainfall days in December - Baton Rouge, LA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (12.9 days).
Months with the lowest number of rainy days are April and October (7.5 days).

Average snowfall in December - Baton Rouge, LA
  • Average snowfall in December: 0mm

The month with the highest snowfall is February (5.1mm).
Months with the lowest snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).

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

Months with most sunshine are May, June and July (Average sunshine: 9h).
Months with least sunshine are January and December (Average sunshine: 5).

Average UV index in December - Baton Rouge, LA
  • Average UV index in December: 4

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).

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