December weather forecast
Irving, TX

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Weather in December

December brings with it the cold winter weather, with temperatures ranging from 41.7°F (5.4°C) to 55.9°F (13.3°C). These temperatures, combined with increased cloudiness at 37%, may make it seem a lot colder than it actually is. An average snowfall of 0.04" (1mm) often leads to mild snowy conditions. Comparatively, there is a longer period of sunshine, lasting 20.8 days. To sum-up, Irving, Texas's winter is cold and cloudy, yet infused with ample sunlight.

Temperature

The transition into December involves a small decrease in the average high-temperature, dipping slightly from a refreshing 64.8°F (18.2°C) in November to a mild 55.9°F (13.3°C). During December, the temperature tends to dip to an average of 41.7°F (5.4°C) at night.

Humidity

The average relative humidity in December is 68%.

Rainfall

In Irving, in December, during 8.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 136.8 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

January, February, November and December are months with snowfall. In Irving, during December, snow falls for 0.4 days and regularly aggregates up to 0.04" (1mm) of snow. In Irving, during the entire year, snow falls for 2.2 days and aggregates up to 0.87" (22mm) of snow.

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 7:12 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:32 pm CST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Irving in December?

During December, Irving experiences an average high-temperature of 55.9°F (13.3°C) and a low-temperature of 41.7°F (5.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 96.8°F (36°C).

What is the average humidity in December?

The average relative humidity in December is 68%.

How many days does it rain in December?

In Irving, in December, during 8.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 0.4 days. Throughout December, 0.04" (1mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Irving have in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:12 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:32 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.6h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December in Irving is 5.6h.

When is the lowest UV index?

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?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Irving, TX

Average temperature in December - Irving, TX
  • Average high temperature in December: 55.9°F

The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in December: 41.7°F

The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in December
Irving, TX

Average pressure in December - Irving, TX
  • 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 (29.91"Hg).

Average wind speed in December
Irving, TX

Average wind speed in December - Irving, TX
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

Average humidity in December
Irving, TX

Average humidity in December - Irving, TX
  • Average humidity in December: 68%

The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).

Average rainfall in December
Irving, TX

Average rainfall in December - Irving, TX
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is February (1.46").

Average rainfall days in December
Irving, TX

Average rainfall days in December - Irving, TX
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
Irving, TX

Average snowfall in December - Irving, TX
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in December
Irving, TX

Average snowfall days in December - Irving, TX
  • Average snowfall days in December: 0.4 days

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

Average daylight in December /
Average sunshine in December
Irving, TX

Average daylight in December / Average sunshine in December - Irving, TX
  • 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: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in December
Irving, TX

Average sunshine days in December - Irving, TX
  • Average sunshine days in December: 20.8 days

The month with the most sunshine days is January (23.8 days).
The months with the least sunshine days are May and September (13.9 days).

Average UV index in December
Irving, TX

Average UV index in December - Irving, TX
  • 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 and December (UV index 3).

Average cloud cover in December
Irving, TX

Average cloud cover in December - Irving, TX
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in December
Irving, TX

Average visibility in December - Irving, TX
  • Average visibility in December: 6mi

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

Irving, Texas, USA

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