December weather forecast
Pearl River, LA

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Weather in December

December, the first month of the winter in Pearl River, is still a refreshing month, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 49.5°F (9.7°C).

Temperature

The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from an agreeable 68.4°F (20.2°C) to a comfortable 62.1°F (16.7°C). December nights in Pearl River observe an average temperature dip to a frosty 49.5°F (9.7°C).

Humidity

December is the most humid month in Pearl River, Louisiana, with an average relative humidity of 79%.

Rainfall

In December, the rain falls for 13.1 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in Pearl River, there are 173.3 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

In Pearl River, snow does not fall in February through December.

Daylight

The month with the shortest days in Pearl River, Louisiana, is December, with an average of 10h and 12min of daylight.
On the first day of December in Pearl River, sunrise is at 6:38 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:09 pm CST.

Sunshine

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

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Pearl River. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 during December translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the usual temperature for Pearl River in December?

December temperatures in Pearl River, Louisiana, vary between a high-temperature of 62.1°F (16.7°C) and a low-temperature of 49.5°F (9.7°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 100.4°F (38°C).

What is the most humid month in Pearl River?

December is the most humid month in Pearl River, with an average relative humidity of 79%.

What is the average humidity in December in Pearl River?

In December, the average relative humidity is 79%.

How many days does it rain in December in Pearl River?

In Pearl River, Louisiana, during December, the rain falls for 13.1 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in Pearl River?

In Pearl River, Louisiana, snow does not fall in February through December.

Does it snow in Pearl River in December?

In Pearl River, Louisiana, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Pearl River?

The month with the shortest days is December, with an average of 10h and 12min of daylight.

How many hours of daylight does Pearl River have in December?

In December, the average day length in Pearl River is 10h and 13min.

When is the sunrise / sunset in December in Pearl River?

On the first day of December in Pearl River, sunrise is at 6:38 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:09 pm CST.

What is the month with the least sunshine in Pearl River?

December has the least sunshine of the year in Pearl River, Louisiana, with an average of 5.1h of sunshine.

How many hours of sunshine does Pearl River have in December?

The average sunshine duration in December in Pearl River, Louisiana, is 5.1h.

What is the month with the lowest UV index in Pearl River?

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

How high is the UV index in December in Pearl River?

In Pearl River, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Pearl River, LA

Average temperature in December - Pearl River, LA
  • Average high temperature in December: 62.1°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in December: 49.5°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

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Average pressure in December
Pearl River, LA

Average pressure in December - Pearl River, LA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in December
Pearl River, LA

Average wind speed in December - Pearl River, LA
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

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Average humidity in December
Pearl River, LA

Average humidity in December - Pearl River, LA
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Pearl River, LA

Average rainfall in December - Pearl River, LA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in December
Pearl River, LA

Average rainfall days in December - Pearl River, LA
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is August (23.5 days).
The month with the least rainy days is November (8 days).

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Average snowfall in December
Pearl River, LA

Average snowfall in December - Pearl River, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Pearl River, LA

Average snowfall days in December - Pearl River, LA
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Pearl River, LA

Average daylight in December / Average sunshine in December - Pearl River, LA
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 5h and 1min

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

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Average sunshine days in December
Pearl River, LA

Average sunshine days in December - Pearl River, LA
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (5.1 days).

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Average UV index in December
Pearl River, LA

Average UV index in December - Pearl River, LA
  • Average UV index in December: 3

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

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Average cloud cover in December
Pearl River, LA

Average cloud cover in December - Pearl River, 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
Pearl River, LA

Average visibility in December - Pearl River, 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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Pearl River, Louisiana, USA

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