December weather forecast
Cotton Valley, LA

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Weather in December

The first month of the winter, December, is still a cool month in Cotton Valley, Louisiana, with an average temperature varying between 40.5°F (4.7°C) and 55.2°F (12.9°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from an enjoyable 63.5°F (17.5°C) to a cool 55.2°F (12.9°C). An average minimum temperature of 40.5°F (4.7°C) is recorded during the month of December.

Humidity

In Cotton Valley, Louisiana, the average relative humidity in December is 80%.

Rainfall

In Cotton Valley, in December, during 12 rainfall days, 3.66" (93mm) of precipitation is typically accumulated. In Cotton Valley, during the entire year, the rain falls for 149.9 days and collects up to 36.1" (917mm) of precipitation.

Snowfall

In Cotton Valley, snow does not fall in April through December.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:58 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:17 pm CST.

Sunshine

In December, the average sunshine in Cotton Valley is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 3 in December leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cotton Valley in December?

In Cotton Valley, in December, the average high-temperature is 55.2°F (12.9°C), and the average low-temperature is 40.5°F (4.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 100.4°F (38°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How many days does it rain in December?

In December, the rain falls for 12 days. Throughout December, 3.66" (93mm) of precipitation is accumulated.

When it does not snow?

In Cotton Valley, snow does not fall in April through December.

Does it snow in December?

In Cotton Valley, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

With an average of 10h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Cotton Valley have in December?

In December, the average day length is 10h and 2min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:58 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:17 pm CST.

How long on average sun shines in December?

In Cotton Valley, the average sunshine duration in December is 4.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Cotton Valley, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Cotton Valley, LA

Average temperature in December - Cotton Valley, LA
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (53.2°F).

  • Average low temperature in December: 40.5°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

Average pressure in December
Cotton Valley, LA

Average pressure in December - Cotton Valley, LA
  • Average pressure in December: 30.13"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
Cotton Valley, LA

Average wind speed in December - Cotton Valley, LA
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Cotton Valley, LA

Average humidity in December - Cotton Valley, LA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (68%).

Average rainfall in December
Cotton Valley, LA

Average rainfall in December - Cotton Valley, LA
  • Average rainfall in December: 3.66"

The wettest month (with the highest rainfall) is April (4.65").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Cotton Valley, LA

Average rainfall days in December - Cotton Valley, LA
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is July (14.3 days).
The months with the least rainy days are October and November (10.1 days).

Average snowfall in December
Cotton Valley, LA

Average snowfall in December - Cotton Valley, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Cotton Valley, LA

Average snowfall days in December - Cotton Valley, LA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cotton Valley, LA

Average daylight in December / Average sunshine in December - Cotton Valley, LA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Cotton Valley, LA

Average sunshine days in December - Cotton Valley, LA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is February (13.5 days).

Average UV index in December
Cotton Valley, LA

Average UV index in December - Cotton Valley, LA
  • Average UV index in December: 3

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

Average cloud cover in December
Cotton Valley, LA

Average cloud cover in December - Cotton Valley, LA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Cotton Valley, LA

Average visibility in December - Cotton Valley, LA
  • Average visibility in December: 5mi

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

Cotton Valley, Louisiana, USA

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