December weather forecast and climate
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 average temperature varying between 60.3°F (15.7°C) and 45.1°F (7.3°C).

Temperature

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

Humidity

The average relative humidity in Austin is 70%.

Rainfall

In Austin, it is raining for 9.7 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 142.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Austin.

Daylight

With an average of 10.2h of daylight, December has the shortest days of the year in Austin.

Sunshine

With an average of 5.3h of sunshine, December has the least sunshine of the year.

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 medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for 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 temperature in December in Austin?

In December, in Austin, the average high-temperature is 60.3°F (15.7°C), and the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in December in Austin?

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

How much does it rain in Austin in December?

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

Does it snow in Austin in December?

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

When it does not snow in Austin?

March through December are months without snowfall in Austin.

What is the month with the shortest days in Austin?

With an average of 10.2h of daylight, December has the shortest days of the year in Austin, Texas.

How many hours of daylight does Austin have in December?

In December, the average length of the day in Austin is 10.2h.

What is the month with the least sunshine in Austin?

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

How many hours of sunshine does Austin have in December?

The average sunshine in December is 5.3h.

When is the lowest UV index in Austin?

The month with the lowest UV index is December, with an average maximum UV index of 3.

How high is the UV index in December in Austin?

In Austin, Texas, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

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"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.91").

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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").
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

Months with the highest number of snowfall days are January and February (0.3 days).
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: 10.2h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in December: 5.3h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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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

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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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