December weather forecast
Del Rio, TX

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Weather in December

December, the first month of the winter in Del Rio, is still a refreshing month, with an average temperature ranging between min 46.2°F (7.9°C) and max 63.7°F (17.6°C).

Temperature

The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a pleasant 70.7°F (21.5°C) in November to a comfortable 63.7°F (17.6°C). Del Rio experiences a mean temperature of 46.2°F (7.9°C) during December nights.

Humidity

The average relative humidity in December is 58%.

Rainfall

In Del Rio, in December, it is raining for 4.4 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, there are 85.2 rainfall days, and 9.61" (244mm) of precipitation is accumulated.

Snowfall

In Del Rio, snow does not fall in March through December.

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 7:21 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:55 pm CST.

Sunshine

November and December, with an average of 6.3h of sunshine, are months with the least sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

What are December temperatures?

Del Rio in December has an average high-temperature of 63.7°F (17.6°C) and an average low-temperature of 46.2°F (7.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in October is calculated to be 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 58%.

How many days does it rain in December?

In Del Rio, in December, during 4.4 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

When it does not snow?

March through December are months without snowfall.

Does it snow in December?

In Del Rio, 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 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 10h and 18min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:21 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:55 pm CST.

What is the month with the least sunshine?

November and December, with an average of 6.3h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In Del Rio, the average sunshine duration in December is 6.3h.

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 exposure to the Sun's 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
Del Rio, TX

Average temperature in December - Del Rio, TX
  • Average high temperature in December: 63.7°F

The warmest month (with the highest average high temperature) is August (97.9°F).
The month with the lowest average high temperature is January (63.3°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

Average pressure in December
Del Rio, TX

Average pressure in December - Del Rio, TX
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in December
Del Rio, TX

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

The windiest month (with the highest average wind speed) is June (12.8mph).
The calmest month (with the lowest average wind speed) is December (8.5mph).

Average humidity in December
Del Rio, TX

Average humidity in December - Del Rio, TX
  • Average humidity in December: 58%

The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).

Average rainfall in December
Del Rio, TX

Average rainfall in December - Del Rio, TX
  • Average rainfall in December: 0.28"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in December
Del Rio, TX

Average rainfall days in December - Del Rio, TX
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in December
Del Rio, TX

Average snowfall in December - Del Rio, TX
  • Average snowfall in December: 0"

The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Del Rio, TX

Average snowfall days in December - Del Rio, TX
  • 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 March, April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Del Rio, TX

Average daylight in December / Average sunshine in December - Del Rio, TX
  • Average daylight in December: 10h and 2min

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

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

Average sunshine days in December
Del Rio, TX

Average sunshine days in December - Del Rio, TX
  • Average sunshine days in December: 25.3 days

The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is May (15.5 days).

Average UV index in December
Del Rio, TX

Average UV index in December - Del Rio, TX
  • Average UV index in December: 3

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Del Rio, TX

Average cloud cover in December - Del Rio, TX
  • Average cloud cover in December: 26

The months with the most cloud cover are March and May (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Del Rio, TX

Average visibility in December - Del Rio, 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).

Del Rio, Texas, USA

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