December weather forecast
Llano, TX

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Weather in December

December, the first month of the winter in Llano, is still a refreshing month, with an average temperature varying between 42.3°F (5.7°C) and 59.9°F (15.5°C).

Temperature

December witnesses a gentle descent in average high-temperature, descending from November's comfortable 67.1°F (19.5°C) to a moderate 59.9°F (15.5°C). Llano witnesses a consistent average low-temperature of 42.3°F (5.7°C) throughout December.

Humidity

In Llano, the average relative humidity in December is 67%.

Rainfall

In Llano, Texas, during December, the rain falls for 8.8 days and regularly aggregates up to 1.26" (32mm) of precipitation. 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. Throughout the year, in Llano, there are 1.9 snowfall days, and 0.43" (11mm) of snow is accumulated.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year.
On the first day of December in Llano, Texas, 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 unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Llano in December?

The high-temperature, in December, in Llano, records 59.9°F (15.5°C), while the low-temperature is 42.3°F (5.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is appraised at 95°F (35°C).

What is the average humidity in December in Llano?

The average relative humidity in December in Llano is 67%.

How many days does it rain in December in Llano?

In December, the rain falls for 8.8 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

When does it start snowing in Llano?

December is the first month it typically snows in Llano. Throughout December, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow.

What is the month with the shortest days in Llano?

December has the shortest days of the year in Llano, with an average of 10h and 12min of daylight.

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

The average day length in December in Llano is 10h and 12min.

When are sunrise and sunset in December in Llano?

In December, on the first day of the month, sunrise is at 7:15 am and sunset at 5:32 pm. On the last day of the month, in Llano, sunrise is at 7:32 am and sunset at 5:43 pm CST.

What are the months with the least sunshine in Llano?

November and December, with an average of 5.7h of sunshine, are months with the least sunshine.

How many hours of sunshine does Llano have in December?

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

What is the month with the lowest UV index in Llano?

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

What is the UV index intensity in December in Llano?

The average daily maximum UV index in December in Llano, Texas, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
Llano, TX

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).

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Average pressure in December
Llano, TX

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).

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Average wind speed in December
Llano, TX

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).

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Average humidity in December
Llano, TX

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%).

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Average rainfall in December
Llano, TX

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").

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Average rainfall days in December
Llano, TX

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).

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Average snowfall in December
Llano, TX

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").

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Average snowfall days in December
Llano, TX

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).

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

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).

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Average sunshine days in December
Llano, TX

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).

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Average UV index in December
Llano, TX

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).

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Average cloud cover in December
Llano, TX

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).

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Average visibility in December
Llano, TX

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).

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Llano, Texas, USA

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