December weather forecast
Valley Mills, TX

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Weather in December

The first month of the winter, December, is still a refreshing month in Valley Mills, Texas, with an average temperature varying between 57.6°F (14.2°C) and 41.9°F (5.5°C).

Temperature

Valley Mills records a mild change in average high-temperature during December, easing from a comfortable 65.7°F (18.7°C) in November to a mild 57.6°F (14.2°C). Valley Mills records a steady low-temperature average of 41.9°F (5.5°C) during December.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In Valley Mills, during December, the rain falls for 7 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Valley Mills, during the entire year, the rain falls for 109.9 days and collects up to 15.2" (386mm) of precipitation.

Snowfall

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

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:12 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:37 pm CST.

Sunshine

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

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 3 during December translates into the following guidance:
Guard yourself - Precautionary measures against sun damage are advocated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Valley Mills in December?

In December, the average high-temperature and low-temperature in Valley Mills are 57.6°F (14.2°C) and 41.9°F (5.5°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is calculated to be 96.8°F (36°C).

What is the average humidity in December?

In December, the average relative humidity is 69%.

How much does it rain in December?

In Valley Mills, in December, during 7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow?

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

Does it snow in December?

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

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 6min of daylight.

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

In Valley Mills, the average day length in December is 10h and 7min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:12 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:37 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 many hours of sunshine does Valley Mills have in December?

The average sunshine duration in December is 5.6h.

What is the month with the lowest UV index in Valley Mills?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Valley Mills, TX

Average temperature in December - Valley Mills, TX
  • Average high temperature in December: 57.6°F

The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure in December
Valley Mills, TX

Average pressure in December - Valley Mills, TX
  • Average pressure in December: 30.12"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
Valley Mills, TX

Average wind speed in December - Valley Mills, TX
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).

Average humidity in December
Valley Mills, TX

Average humidity in December - Valley Mills, TX
  • Average humidity in December: 69%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December
Valley Mills, TX

Average rainfall in December - Valley Mills, TX
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is November (0.59").

Average rainfall days in December
Valley Mills, TX

Average rainfall days in December - Valley Mills, TX
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in December
Valley Mills, TX

Average snowfall in December - Valley Mills, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Valley Mills, TX

Average snowfall days in December - Valley Mills, TX
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is February (0.8 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
Valley Mills, TX

Average daylight in December / Average sunshine in December - Valley Mills, TX
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in December
Valley Mills, TX

Average sunshine days in December - Valley Mills, TX
  • Average sunshine days in December: 22.6 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.8 days).

Average UV index in December
Valley Mills, TX

Average UV index in December - Valley Mills, TX
  • Average UV index in December: 3

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

Average cloud cover in December
Valley Mills, TX

Average cloud cover in December - Valley Mills, TX
  • Average cloud cover in December: 36

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Valley Mills, TX

Average visibility in December - Valley Mills, 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).

Valley Mills, Texas, USA

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