December weather forecast
Van Alstyne, TX

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Weather in December

The first month of the winter, December, is also a fresh month in Van Alstyne, Texas, with an average temperature varying between 53.6°F (12°C) and 39.4°F (4.1°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's refreshing 63°F (17.2°C) to a cool 53.6°F (12°C). An average low-temperature of 39.4°F (4.1°C) is observed during December nights.

Humidity

In December, the average relative humidity is 72%.

Rainfall

In Van Alstyne, during December, the rain falls for 9 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 142.1 rainfall days, and 33.19" (843mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Van Alstyne. In Van Alstyne, in December, snow falls for 0.4 days, with typically accumulated 0.28" (7mm) of snow. In Van Alstyne, during the entire year, snow falls for 3 days and aggregates up to 1.46" (37mm) of snow.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:12 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:30 am and sunset at 5:29 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the temperature in December in Van Alstyne?

During December, Van Alstyne experiences an average high-temperature of 53.6°F (12°C) and a low-temperature of 39.4°F (4.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 93.2°F (34°C).

What is the average humidity in December in Van Alstyne?

The average relative humidity in December is 72%.

How many days does it rain in December in Van Alstyne?

In December, in Van Alstyne, the rain falls for 9 days. Throughout December, 2.01" (51mm) of precipitation is accumulated.

How many days does it snow in December in Van Alstyne?

In Van Alstyne, Texas, in December, during 0.4 snowfall days, 0.28" (7mm) of snow is typically accumulated.

What is the month with the shortest days in Van Alstyne?

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

What is the average length of the day in December in Van Alstyne?

The average day length in December is 9h and 59min.

What time are sunrise and sunset in December in Van Alstyne?

On the first day of December, sunrise is at 7:12 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:29 pm CST.

What is the month with the least sunshine in Van Alstyne?

December has the least sunshine of the year in Van Alstyne, Texas, with an average of 5.5h of sunshine.

How long on average sun shines in December in Van Alstyne?

The average sunshine duration in December in Van Alstyne, Texas, is 5.5h.

When is the lowest UV index in Van Alstyne?

With an average maximum UV index of 2, December is the month with the lowest UV index in Van Alstyne, Texas.

What is the UV index reading in December in Van Alstyne?

In Van Alstyne, Texas, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Van Alstyne, TX

Average temperature in December - Van Alstyne, TX
  • Average high temperature in December: 53.6°F

The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in December: 39.4°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).

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Average pressure in December
Van Alstyne, TX

Average pressure in December - Van Alstyne, 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 (29.9"Hg).

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Average wind speed in December
Van Alstyne, TX

Average wind speed in December - Van Alstyne, TX
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).

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Average humidity in December
Van Alstyne, TX

Average humidity in December - Van Alstyne, TX
  • Average humidity in December: 72%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in December
Van Alstyne, TX

Average rainfall in December - Van Alstyne, TX
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in December
Van Alstyne, TX

Average rainfall days in December - Van Alstyne, TX
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in December
Van Alstyne, TX

Average snowfall in December - Van Alstyne, TX
  • Average snowfall in December: 0.28"

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

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Average snowfall days in December
Van Alstyne, TX

Average snowfall days in December - Van Alstyne, 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 April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Van Alstyne, TX

Average daylight in December / Average sunshine in December - Van Alstyne, 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 3min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Van Alstyne, TX

Average sunshine days in December - Van Alstyne, TX
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.8 days).

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Average UV index in December
Van Alstyne, TX

Average UV index in December - Van Alstyne, TX
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Van Alstyne, TX

Average cloud cover in December - Van Alstyne, TX
  • Average cloud cover in December: 38

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in December
Van Alstyne, TX

Average visibility in December - Van Alstyne, 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).

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Van Alstyne, Texas, USA

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