December weather forecastSanctuary, TX
December
Weather in December
December, the first month of the winter in Sanctuary, is still a cool month, with an average temperature ranging between max 55.2°F (12.9°C) and min 40.1°F (4.5°C).Temperature
With the onset of December, Sanctuary's average high-temperature slightly adjusts, moderately receding from November's comfortable 64.2°F (17.9°C) to a cool 55.2°F (12.9°C). Throughout the month of December, the nighttime temperature dips to an average of 40.1°F (4.5°C).Humidity
In December, the average relative humidity is 66%.Rainfall
In December, the rain falls for 8.2 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. In Sanctuary, Texas, during the entire year, the rain falls for 129.2 days and collects up to 27.36" (695mm) of precipitation.Snowfall
January, February, November and December are months with snowfall. In Sanctuary, in December, snow falls for 0.5 days, with typically accumulated 0.2" (5mm) of snow. In Sanctuary, during the entire year, snow falls for 2.7 days and aggregates up to 1.38" (35mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:15 am and sunset at 5:23 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:34 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.8h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 3 in December transforms into this advice:
Take precautions - Protection against sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sanctuary, TX
- Average high temperature in December: 55.2°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 (55°F).
- Average low temperature in December: 40.1°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 (38.1°F).
Average pressure in December
Sanctuary, 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 (29.89"Hg).
Average wind speed in December
Sanctuary, TX
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in December
Sanctuary, TX
- Average humidity in December: 66%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Sanctuary, TX
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is October (3.74").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in December
Sanctuary, TX
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Sanctuary, TX
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in December
Sanctuary, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.5 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
Sanctuary, 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 48min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Sanctuary, TX
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in December
Sanctuary, TX
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Sanctuary, TX
- Average cloud cover in December: 34
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Sanctuary, 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).
