December weather forecast
Austin, TX

The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas
The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas

Weather in December

The first month of the winter, December, is still a mild month in Austin, Texas, with an average temperature varying between 45.1°F (7.3°C) and 60.3°F (15.7°C).

Temperature

In December, the average high-temperature slightly decreases from a comfortable 67.6°F (19.8°C) in November to a mild 60.3°F (15.7°C). In December, the average low-temperature is 45.1°F (7.3°C).

Humidity

In Austin, the average relative humidity in December is 70%.

Rainfall

In December, the rain falls for 9.7 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. In Austin, during the entire year, the rain falls for 142.7 days and collects up to 21.5" (546mm) of precipitation.

Snowfall

In Austin, snow does not fall in March through December.

Daylight

The month with the shortest days in Austin is December, with an average of 10h and 14min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 5:30 pm. On the last day of December, in Austin, sunrise is at 7:27 am and sunset at 5:40 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Austin. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in December in Austin?

In December, the average relative humidity in Austin, Texas, is 70%.

How many days does it rain in December in Austin?

In Austin, in December, it is raining for 9.7 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in Austin?

March through December are months without snowfall in Austin.

Does it snow in Austin in December?

In Austin, Texas, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Austin?

December has the shortest days of the year in Austin, Texas, with an average of 10h and 14min of daylight.

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

The average day length in December in Austin, Texas, is 10h and 14min.

When are sunrise and sunset in December in Austin?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 5:30 pm. On the last day of the month, in Austin, sunrise is at 7:27 am and sunset at 5:40 pm CST.

What is the month with the least sunshine in Austin?

The month with the least sunshine in Austin, Texas, is December, with an average of 5.3h of sunshine.

How long on average sun shines in December in Austin?

In Austin, Texas, the average sunshine duration in December is 5.3h.

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

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

How high is the UV index in December in Austin?

In Austin, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Austin, TX

Average temperature in December - Austin, TX
  • Average high temperature in December: 60.3°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in December: 45.1°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

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Average pressure in December
Austin, TX

Average pressure in December - Austin, 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 (29.91"Hg).

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Average wind speed in December
Austin, TX

Average wind speed in December - Austin, TX
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

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Average humidity in December
Austin, TX

Average humidity in December - Austin, TX
  • Average humidity in December: 70%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in December
Austin, TX

Average rainfall in December - Austin, TX
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in December
Austin, TX

Average rainfall days in December - Austin, TX
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in December
Austin, TX

Average snowfall in December - Austin, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.4").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Austin, TX

Average snowfall days in December - Austin, TX
  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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

Average daylight in December / Average sunshine in December - Austin, TX
  • Average daylight in December: 10h and 14min

The month with the longest days is June (Average daylight: 14h and 4min).
The month with the shortest days is December (Average daylight: 10h and 14min).

  • Average sunshine in December: 5h and 18min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Austin, TX

Average sunshine days in December - Austin, TX
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in December
Austin, TX

Average UV index in December - Austin, 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
Austin, TX

Average cloud cover in December - Austin, TX
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in December
Austin, TX

Average visibility in December - Austin, 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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