December weather forecast
Merryville, LA

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Weather in December

December, the first month of the winter in Merryville, is also a moderate month, with an average temperature fluctuating between 44.4°F (6.9°C) and 59.7°F (15.4°C).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from a comfortable 67.8°F (19.9°C) in November to a moderate 59.7°F (15.4°C). The average temperature during December nights dips to a chilly 44.4°F (6.9°C).

Humidity

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

Rainfall

In Merryville, during December, the rain falls for 11.3 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 150.4 rainfall days, and 22.8" (579mm) of precipitation is accumulated.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 1.5 snowfall days, and 0.51" (13mm) of snow is accumulated.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:54 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:23 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 4.8h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

In December, the average high-temperature and low-temperature are 59.7°F (15.4°C) and 44.4°F (6.9°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 105.8°F (41°C).

What is the average humidity in December?

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

How much does it rain in December?

In Merryville, during December, the rain falls for 11.3 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Merryville have in December?

In Merryville, the average day length in December is 10h and 12min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:54 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:23 pm CST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.8h of sunshine.

How long on average sun shines in December?

In Merryville, the average sunshine duration in December is 4.8h.

When is the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December in Merryville is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Merryville, LA

Average temperature in December - Merryville, LA
  • Average high temperature in December: 59.7°F

The warmest months (with the highest average high temperature) are July and August (94.5°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in December: 44.4°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure in December
Merryville, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Merryville, LA

Average wind speed in December - Merryville, LA
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Merryville, LA

Average humidity in December - Merryville, 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%).

Average rainfall in December
Merryville, LA

Average rainfall in December - Merryville, LA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is November (1.3").

Average rainfall days in December
Merryville, LA

Average rainfall days in December - Merryville, LA
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in December
Merryville, LA

Average snowfall in December - Merryville, LA
  • Average snowfall in December: 0.08"

The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Merryville, LA

Average snowfall days in December - Merryville, LA
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Merryville, 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: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Merryville, LA

Average sunshine days in December - Merryville, LA
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is August (10.1 days).

Average UV index in December
Merryville, LA

Average UV index in December - Merryville, 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).

Average cloud cover in December
Merryville, LA

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

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is October (Cloud cover 32).

Average visibility in December
Merryville, LA

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

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

Merryville, Louisiana, USA

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