December weather forecast
Del Rio, TN

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Weather in December

December, the first month of the winter in Del Rio, is also a frosty month, with an average temperature ranging between max 49.1°F (9.5°C) and min 34.3°F (1.3°C).

Temperature

December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a mild 57°F (13.9°C) in November to a chilly 49.1°F (9.5°C). An average low-temperature of 34.3°F (1.3°C) is noted during the nights in December.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 78%.

Rainfall

In Del Rio, in December, during 11.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Del Rio, during the entire year, the rain falls for 155.9 days and collects up to 24.02" (610mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. December is the month with the most snowfall in Del Rio. Snow falls for 4.6 days and accumulates 2.48" (63mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:24 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:28 pm EST.

Sunshine

In Del Rio, the average sunshine in December is 5.6h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The average high-temperature and low-temperature during December are 49.1°F (9.5°C) and 34.3°F (1.3°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 95°F (35°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 78%.

What is the average humidity in December?

In Del Rio, the average relative humidity in December is 78%.

How much does it rain in December?

In Del Rio, during December, the rain falls for 11.5 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When does it snow the most in Del Rio?

December is the month with the most snowfall. Snow falls for 4.6 days and accumulates 2.48" (63mm) of snow.

How much does it snow in Del Rio in December?

In Del Rio, during December, snow falls for 4.6 days and regularly aggregates up to 2.48" (63mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 46min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:28 pm EST.

How many hours of sunshine does Del Rio have in December?

The average sunshine duration in December is 5.6h.

When is the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Del Rio, TN

Average temperature in December - Del Rio, TN
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (44.6°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average pressure in December
Del Rio, TN

Average pressure in December - Del Rio, TN
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Del Rio, TN

Average wind speed in December - Del Rio, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in December
Del Rio, TN

Average humidity in December - Del Rio, TN
  • Average humidity in December: 78%

The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are July and August (73%).

Average rainfall in December
Del Rio, TN

Average rainfall in December - Del Rio, TN
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is February (2.87").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in December
Del Rio, TN

Average rainfall days in December - Del Rio, TN
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (10 days).

Average snowfall in December
Del Rio, TN

Average snowfall in December - Del Rio, TN
  • Average snowfall in December: 2.48"

The month with the highest snowfall is December (2.48").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Del Rio, TN

Average snowfall days in December - Del Rio, TN
  • Average snowfall days in December: 4.6 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Del Rio, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in December
Del Rio, TN

Average sunshine days in December - Del Rio, TN
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is July (12 days).

Average UV index in December
Del Rio, TN

Average UV index in December - Del Rio, TN
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Del Rio, TN

Average cloud cover in December - Del Rio, TN
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in December
Del Rio, TN

Average visibility in December - Del Rio, TN
  • Average visibility in December: 6mi

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

Del Rio, Tennessee, USA

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