December weather forecast
Arlington, LA

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Weather in December

December, the first month of the winter in Arlington, is still a comfortable month, with temperature in the range of an average high of 61.9°F (16.6°C) and an average low of 46.9°F (8.3°C).

Temperature

The advent of December brings a subtle shift in temperature, with the average high moving from an agreeable 68.9°F (20.5°C) in November to a comfortable 61.9°F (16.6°C). Arlington's average low-temperature in December is measured at a frosty 46.9°F (8.3°C).

Humidity

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

Rainfall

In Arlington, during December, the rain falls for 14.3 days and regularly aggregates up to 3.43" (87mm) of precipitation. In Arlington, during the entire year, the rain falls for 187.5 days and collects up to 40" (1016mm) of precipitation.

Snowfall

Months with snowfall are January and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 0.4 snowfall days, and 0.24" (6mm) 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 6:44 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

The month with the least sunshine is December, with an average of 5h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What are December temperatures?

During December, Arlington experiences an average high-temperature of 61.9°F (16.6°C) and a low-temperature of 46.9°F (8.3°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 105.8°F (41°C).

What is the most humid month?

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

What is the average humidity in December?

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

How much does it rain in December?

In December, the rain falls for 14.3 days. Throughout December, 3.43" (87mm) of precipitation is accumulated.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Arlington have in December?

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

When is the sunrise / sunset in December?

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.

What is the month with the least sunshine?

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

How long on average sun shines in December?

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

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Arlington, LA

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

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in December: 46.9°F

The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

Average pressure in December
Arlington, LA

Average pressure in December - Arlington, 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).

Average wind speed in December
Arlington, LA

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

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in December
Arlington, LA

Average humidity in December - Arlington, 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%).

Average rainfall in December
Arlington, LA

Average rainfall in December - Arlington, LA
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is July (5.47").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in December
Arlington, LA

Average rainfall days in December - Arlington, LA
  • Average rainfall days in December: 14.3 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in December
Arlington, LA

Average snowfall in December - Arlington, LA
  • Average snowfall in December: 0.04"

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 and November (0").

Average snowfall days in December
Arlington, LA

Average snowfall days in December - Arlington, 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 February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Arlington, 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 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Arlington, LA

Average sunshine days in December - Arlington, LA
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (5.9 days).

Average UV index in December
Arlington, LA

Average UV index in December - Arlington, 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).

Average cloud cover in December
Arlington, LA

Average cloud cover in December - Arlington, LA
  • Average cloud cover in December: 48

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in December
Arlington, LA

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

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

Arlington, Louisiana, USA

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