Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Llano in December experiences a gentle temperature dip, with average high-temperatures reducing from an enjoyable 67.1°F (19.5°C) in November to a moderate 59.9°F (15.5°C). Throughout the December nights, Llano encounters a low-temperature of 42.3°F (5.7°C).Humidity
In Llano, Texas, the average relative humidity in December is 67%.Rainfall
In Llano, in December, during 8.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Llano, during the entire year, the rain falls for 123.8 days and collects up to 21.18" (538mm) of precipitation.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow. In Llano, during the entire year, snow falls for 1.9 days and aggregates up to 0.43" (11mm) of snow.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year in Llano.On the first day of December, sunrise is at 7:15 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:43 pm CST.
Sunshine
November and December, with an average of 5.7h of sunshine, are months with the least sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 3 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. 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
What is the temperature in December in Llano?
What is the average humidity in December?
How much does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Llano have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Llano have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Llano, TX
- Average high temperature in December: 59.9°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in December: 42.3°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in December
Llano, TX
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Llano, TX
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in December
Llano, TX
- Average humidity in December: 67%
The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Llano, TX
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days in December
Llano, TX
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Llano, TX
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Llano, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Llano, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Llano, TX
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in December
Llano, 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
Llano, TX
- Average cloud cover in December: 35
The month with the most cloud cover is May (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Llano, 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).
Llano, Texas, USA
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