December weather forecast
New Orleans, LA

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Commuter buses on the street in New Orleans, Louisiana
Commuter buses on the street in New Orleans, Louisiana

December

Weather in December

December wraps up the year in New Orleans by offering a fresh, cool ambiance. Compared to November, this month records a palpable drop in the average temperature, painting a wintery canvas across the city. Lowest temperatures hover around 52.5°F (11.4°C), setting a unique December characteristic for the entire year. As the city moves into the next year, maintaining similar weather patterns, December delivers a pleasant farewell to the year. As it comes with milder temperatures and adequate rainfall, December offers a soothing contrast to the prior blistering summer months in New Orleans.

Temperature

December signifies a gentle decline in New Orleans's average high-temperature, easing from a pleasant 68.9°F (20.5°C) in November to a comfortable 63.5°F (17.5°C). Throughout December, New Orleans witnesses a nighttime temperature average of 52.5°F (11.4°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 77%.

Rainfall

In New Orleans, during December, the rain falls for 7.8 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 112.1 rainfall days, and 9.37" (238mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 6:38 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:11 pm CST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year.

UV index

The month with the lowest UV index in New Orleans is 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 rays for the ordinary person.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?
In December, the average high-temperature and low-temperature are 63.5°F (17.5°C) and 52.5°F (11.4°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 98.6°F (37°C).
What are the most humid months?
The months with the highest humidity are February and December, with an average relative humidity of 77%.
What is the average humidity in December?
In New Orleans, Louisiana, the average relative humidity in December is 77%.
How much does it rain in December?
In New Orleans, in December, during 7.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.
When it does not snow?
In New Orleans, snow does not fall in February through December.
Does it snow in December?
In New Orleans, in December, it doesn't snow. In January, it regularly snows.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 10h and 18min of daylight.
What is the average length of the day in December?
In New Orleans, Louisiana, the average day length in December is 10h and 16min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 6:38 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:11 pm CST.
What is the month with the least sunshine in New Orleans?
The month with the least sunshine is December, with an average of 5.1h of sunshine.
How long on average sun shines in December?
The average sunshine duration in December is 5.1h.
When is the lowest UV index in New Orleans?
With an average maximum UV index of 3, December is the month with the lowest UV index.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
68.9°F
63.5°F
60.4°F
Average low temperature
57.4°F
52.5°F
48.6°F
Average pressure
30.12"Hg
30.12"Hg
30.16"Hg
Average wind speed
9mph
9.4mph
9.6mph
Average max. wind speed
9.6mph
10.1mph
10.2mph
Average wind speed gusts
13.7mph
14.5mph
14.7mph
Average humidity
72%
77%
74%
Average rainfall
0.63"
0.79"
0.47"
Average rainfall days
4.7
7.8
5.8
Average snowfall days
0
0
0.1
Average daylight
10h 4min
10h 2min
10h 3min
Average sunshine
6h 1min
5h 1min
5h 4min
Average sunshine days
23.5
21.6
23.1
Average UV index
5
3
4
Average cloud cover
31%
44%
36%
Average visibility
6mi
6mi
6mi
Average temperature in December - New Orleans, LA
Average temperature in December
New Orleans, LA
  • Average high temperature in December: 63.5°F

The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52.5°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

Average pressure in December - New Orleans, LA
Average pressure in December
New Orleans, LA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

Average wind speed in December - New Orleans, LA
Average wind speed in December
New Orleans, LA
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in December - New Orleans, LA
Average humidity in December
New Orleans, LA
  • Average humidity in December: 77%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December - New Orleans, LA
Average rainfall in December
New Orleans, LA
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").

Average rainfall days in December - New Orleans, LA
Average rainfall days in December
New Orleans, LA
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).

Average snowfall days in December - New Orleans, LA
Average snowfall days in December
New Orleans, LA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December / Average sunshine in December - New Orleans, LA
Average daylight in December /
Average sunshine in December
New Orleans, LA
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December - New Orleans, LA
Average sunshine days in December
New Orleans, LA
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).

Average UV index in December - New Orleans, LA
Average UV index in December
New Orleans, LA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December - New Orleans, LA
Average cloud cover in December
New Orleans, LA
  • Average cloud cover in December: 44

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in December - New Orleans, LA
Average visibility in December
New Orleans, LA
  • Average visibility in December: 6mi

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

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