December weather forecast
Merrydale, LA

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Weather in December

December, the first month of the winter in Merrydale, is still a comfortable month, with an average temperature varying between 46.4°F (8°C) and 61.5°F (16.4°C).

Temperature

December's arrival aligns with a minor decrease in average high-temperatures, from November's agreeable 68.4°F (20.2°C) to an enjoyable 61.5°F (16.4°C). Merrydale's temperature tends to fall to an average low of 46.4°F (8°C) during the nights of December.

Humidity

In Merrydale, Louisiana, the average relative humidity in December is 81%.

Rainfall

In Merrydale, in December, it is raining for 13.4 days, with typically 3.35" (85mm) of accumulated precipitation. In Merrydale, during the entire year, the rain falls for 177.1 days and collects up to 36.1" (917mm) of precipitation.

Snowfall

Months with snowfall in Merrydale are January and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, in Merrydale, there are 0.5 snowfall days, and 0.51" (13mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 12min of daylight.
On the first day of December, sunrise is at 6:44 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:14 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 3 during December translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun is at its strongest around midday, find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the usual temperature for Merrydale in December?

An average high-temperature, in December, in Merrydale, is 61.5°F (16.4°C) and the average low-temperature is 46.4°F (8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is appraised at 105.8°F (41°C).

What is the average humidity in December in Merrydale?

The average relative humidity in December is 81%.

How many days does it rain in December in Merrydale?

In December, in Merrydale, Louisiana, the rain falls for 13.4 days. Throughout December, 3.35" (85mm) of precipitation is accumulated.

When does it start to snow in Merrydale?

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 Merrydale?

December has the shortest days of the year in Merrydale, with an average of 10h and 12min of daylight.

What is the average length of the day in December in Merrydale?

In Merrydale, Louisiana, the average day length in December is 10h and 13min.

When are sunrise and sunset in December in Merrydale?

On the first day of December in Merrydale, Louisiana, sunrise is at 6:44 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Merrydale?

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

How many hours of sunshine does Merrydale have in December?

The average sunshine duration in December in Merrydale is 5h.

When is the lowest UV index in Merrydale?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

How high is the UV index in December in Merrydale?

In December, the average daily maximum UV index in Merrydale is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Merrydale, LA

Average temperature in December - Merrydale, LA
  • Average high temperature in December: 61.5°F

The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in December: 46.4°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in December
Merrydale, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

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Average wind speed in December
Merrydale, LA

Average wind speed in December - Merrydale, LA
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).

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Average humidity in December
Merrydale, LA

Average humidity in December - Merrydale, 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%).

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Average rainfall in December
Merrydale, LA

Average rainfall in December - Merrydale, LA
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").

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Average rainfall days in December
Merrydale, LA

Average rainfall days in December - Merrydale, 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 least rainy days is November (8.8 days).

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Average snowfall in December
Merrydale, LA

Average snowfall in December - Merrydale, LA
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Merrydale, LA

Average snowfall days in December - Merrydale, LA
  • Average snowfall days in December: 0.1 days

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

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

Average daylight in December / Average sunshine in December - Merrydale, 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Merrydale, LA

Average sunshine days in December - Merrydale, LA
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).

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Average UV index in December
Merrydale, LA

Average UV index in December - Merrydale, LA
  • Average UV index in December: 3

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

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Average cloud cover in December
Merrydale, LA

Average cloud cover in December - Merrydale, LA
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in December
Merrydale, LA

Average visibility in December - Merrydale, LA
  • Average visibility in December: 5mi

The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).

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Merrydale, Louisiana, USA

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