December weather forecastGranbury, TX
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
Granbury, TX
- Average daylight in December: 10h and 6min
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 42min
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).
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).
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).
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).
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).
