December weather forecast
Merlin, LA

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Weather in December

The first month of the winter, December, is still a comfortable month in Merlin, Louisiana, with an average temperature fluctuating between 61.9°F (16.6°C) and 47.3°F (8.5°C).

Temperature

As December commences, the average high-temperature subtly reduces, transitioning from an agreeable 68.9°F (20.5°C) in November to an enjoyable 61.9°F (16.6°C). During the month of December, the temperature in Merlin generally drops to a low average of 47.3°F (8.5°C).

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In Merlin, during December, the rain falls for 11.4 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 148.6 rainfall days, and 15.51" (394mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

December has the shortest days of the year in Merlin, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:44 am and sunset at 5:04 pm. On the last day of December, in Merlin, sunrise is at 7:01 am and sunset at 5:15 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 is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What are the temperatures in Merlin in December?

The high-temperature, in December, in Merlin, records 61.9°F (16.6°C), while the low-temperature is 47.3°F (8.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 104°F (40°C).

What are the most humid months in Merlin?

The months with the highest humidity in Merlin are February and December, with an average relative humidity of 81%.

What is the average humidity in December in Merlin?

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

How many days does it rain in December in Merlin?

In Merlin, Louisiana, during December, the rain falls for 11.4 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When it does not snow in Merlin?

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

Does it snow in Merlin in December?

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

What is the month with the shortest days in Merlin?

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

How many hours of daylight does Merlin have in December?

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

When is the sunrise / sunset in December in Merlin?

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 5:04 pm. On the last day of the month, in Merlin, Louisiana, sunrise is at 7:01 am and sunset at 5:15 pm CST.

What is the month with the least sunshine in Merlin?

The month with the least sunshine in Merlin is December, with an average of 5.1h of sunshine.

How long on average sun shines in December in Merlin?

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

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

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

What is the UV index intensity in December in Merlin?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents 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
Merlin, LA

Average temperature in December - Merlin, LA
  • Average high temperature in December: 61.9°F

The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

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Average pressure in December
Merlin, LA

Average pressure in December - Merlin, 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 and August (29.96"Hg).

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Average wind speed in December
Merlin, LA

Average wind speed in December - Merlin, LA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in December
Merlin, LA

Average humidity in December - Merlin, LA
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in December
Merlin, LA

Average rainfall in December - Merlin, LA
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is March (0.67").

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Average rainfall days in December
Merlin, LA

Average rainfall days in December - Merlin, LA
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (7.1 days).

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Average snowfall in December
Merlin, LA

Average snowfall in December - Merlin, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.08").
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
Merlin, LA

Average snowfall days in December - Merlin, LA
  • Average snowfall days in December: 0 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, September, October, November and December (0 days).

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

Average daylight in December / Average sunshine in December - Merlin, 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: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Merlin, LA

Average sunshine days in December - Merlin, LA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (7.3 days).

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Average UV index in December
Merlin, LA

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

The months with the highest UV index are 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
Merlin, LA

Average cloud cover in December - Merlin, LA
  • Average cloud cover in December: 47

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in December
Merlin, LA

Average visibility in December - Merlin, LA
  • Average visibility in December: 6mi

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

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Merlin, Louisiana, USA

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