December weather forecast
Granbury, TX

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Weather in December

December, the first month of the winter in Granbury, is still a refreshing month, with an average temperature fluctuating between 56.5°F (13.6°C) and 40.8°F (4.9°C).

Temperature

The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a comfortable 65.3°F (18.5°C) in November to a mild 56.5°F (13.6°C). Throughout December, the average low-temperature records at a cold 40.8°F (4.9°C).

Humidity

The average relative humidity in December in Granbury, Texas, is 66%.

Rainfall

The month with the least rainfall in Granbury, Texas, is December, when the rain falls for 5.5 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

February and December are months with snowfall. December is the first month it typically snows in Granbury, Texas. Throughout December, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 2.1 snowfall days, and 0.63" (16mm) of snow is accumulated.

Daylight

The month with the shortest days in Granbury, Texas, is December, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 7:15 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:36 pm CST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year in Granbury.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the temperature in December in Granbury?

The high-temperature, in December, in Granbury, records 56.5°F (13.6°C), while the low-temperature is 40.8°F (4.9°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 95°F (35°C).

What is the average humidity in December in Granbury?

In Granbury, the average relative humidity in December is 66%.

What is the driest month in Granbury?

December is the month with the least rainfall in Granbury, Texas. Rain falls for 5.5 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in December in Granbury?

In December, in Granbury, Texas, the rain falls for 5.5 days. Throughout December, 0.71" (18mm) of precipitation is accumulated.

When does it start snowing in Granbury?

December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow.

What is the month with the shortest days in Granbury?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Granbury?

The average day length in December in Granbury is 10h and 4min.

When are sunrise and sunset in December in Granbury?

On the first day of December in Granbury, Texas, sunrise is at 7:15 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:36 pm CST.

What is the month with the least sunshine in Granbury?

The month with the least sunshine in Granbury is December, with an average of 5.7h of sunshine.

How long on average sun shines in December in Granbury?

In December, the average sunshine duration in Granbury is 5.7h.

When is the lowest UV index in Granbury?

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

How high is the UV index in December in Granbury?

In Granbury, Texas, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Granbury, TX

Average temperature in December - Granbury, TX
  • Average high temperature in December: 56.5°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in December: 40.8°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in December
Granbury, TX

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

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Average wind speed in December
Granbury, TX

Average wind speed in December - Granbury, TX
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7mph).

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Average humidity in December
Granbury, TX

Average humidity in December - Granbury, TX
  • Average humidity in December: 66%

The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in December
Granbury, TX

Average rainfall in December - Granbury, TX
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in December
Granbury, TX

Average rainfall days in December - Granbury, TX
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in December
Granbury, TX

Average snowfall in December - Granbury, TX
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Granbury, TX

Average snowfall days in December - Granbury, TX
  • Average snowfall days in December: 0.5 days

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

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

Average daylight in December / Average sunshine in December - Granbury, 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 42min).

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Average sunshine days in December
Granbury, TX

Average sunshine days in December - Granbury, TX
  • Average sunshine days in December: 23.8 days

The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is May (15 days).

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Average UV index in December
Granbury, TX

Average UV index in December - Granbury, TX
  • Average UV index in December: 3

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 3).

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Average cloud cover in December
Granbury, TX

Average cloud cover in December - Granbury, TX
  • Average cloud cover in December: 34

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in December
Granbury, TX

Average visibility in December - Granbury, 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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Granbury, Texas, USA

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