December weather forecast
Metairie, LA

Weather in December

The first month of the winter, December, is still a comfortable month in Metairie, Louisiana, with an average temperature fluctuating between 52°F (11.1°C) and 63.3°F (17.4°C).

Temperature

In Metairie, the average high-temperature in December slightly decreases from an agreeable 68.9°F (20.5°C) in November to an enjoyable 63.3°F (17.4°C). The average low-temperature, in Metairie, is 52°F (11.1°C).

Humidity

December is the most humid month, with an average relative humidity of 78%.

Rainfall

In Metairie, in December, during 7.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Metairie, during the entire year, the rain falls for 104.1 days and collects up to 8.39" (213mm) of precipitation.

Daylight

The month with the shortest days in Metairie, Louisiana, is December, with an average of 10h and 15min 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 6:56 am and sunset at 5:11 pm CST.

Sunshine

December has the least sunshine of the year in Metairie, with an average of 5.1h of sunshine.

UV index

The month with the lowest UV index in Metairie, Louisiana, is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the most humid month in Metairie?

December is the most humid month in Metairie, with an average relative humidity of 78%.

What is the average humidity in December in Metairie?

In December, the average relative humidity is 78%.

How much does it rain in Metairie in December?

In Metairie, in December, during 7.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

What is the month with the shortest days in Metairie?

With an average of 10h and 15min of daylight, December has the shortest days of the year.

How many hours of daylight does Metairie have in December?

In December, the average day length is 10h and 15min.

When is the sunrise / sunset in December in Metairie?

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 6:56 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Metairie?

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

How long on average sun shines in December in Metairie?

The average sunshine duration in December in Metairie is 5.1h.

What is the month with the lowest UV index in Metairie?

December is the month with the lowest UV index in Metairie, with an average maximum UV index of 3.

What is the UV index reading in December in Metairie?

In Metairie, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Average temperature in December
Metairie, LA

Average temperature in December - Metairie, LA
  • Average high temperature in December: 63.3°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).

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Average pressure in December
Metairie, LA

Average pressure in December - Metairie, 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).

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Average wind speed in December
Metairie, LA

Average wind speed in December - Metairie, LA
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are February and April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Metairie, LA

Average humidity in December - Metairie, LA
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Metairie, LA

Average rainfall in December - Metairie, LA
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.39").

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Average rainfall days in December
Metairie, LA

Average rainfall days in December - Metairie, LA
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is November (4.5 days).

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Average daylight in December /
Average sunshine in December
Metairie, LA

Average daylight in December / Average sunshine in December - Metairie, LA
  • Average daylight in December: 10h and 15min

The month with the longest days is June (Average daylight: 14h and 3min).
The month with the shortest days is December (Average daylight: 10h and 15min).

  • Average sunshine in December: 5.1h

The month with the most sunshine is June (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in December
Metairie, LA

Average sunshine days in December - Metairie, LA
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is August (10.3 days).

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Average UV index in December
Metairie, LA

Average UV index in December - Metairie, 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).

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Average cloud cover in December
Metairie, LA

Average cloud cover in December - Metairie, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in December
Metairie, LA

Average visibility in December - Metairie, 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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