December weather forecast and climate
Austin, TX

The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city in Texas, USA, in a beautiful sunrise panorama
The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city in Texas, USA, in a beautiful sunrise panorama
December is the beginning of the mild winter season in Austin with the average temperatures in the 42°F (5.6°C) to 62°F (16.7°C) range. Snow is rare, but the nights see the first frost of the season. The thermometer occasionally dips to freezing, but the minimum temperature is mostly above 38°F (3.3°C).
Days usually remain above 50°F (10°C) even though December is the cloudiest month of the year in Austin, with 5 hours of daily sunlight. The shortest days of the year manage to bring more than 10 hours of daylight.
Austin has mostly a warm Christmas that is typical of Central and Southern Texas.

What is the temperature in December in Austin?

In Austin, in December, the average high-temperature is 62.8°F (17.1°C), and the average low-temperature is 42.3°F (5.7°C).

How many days does it rain in December in Austin?

In Austin, Texas, in December, during 7.8 rainfall days, typically, 2.4" (61mm) of precipitation is accumulated.

Does it snow in Austin in December?

In Austin, in December, it doesn't snow. In January, it regularly snows.
Average temperature in December - Austin, TX
  • Average high temperature in December: 17.1°C

The warmest month (with the highest average high temperature) is August (36.1°C).
The month with the lowest average high temperature is January (16.4°C).

  • Average low temperature in December: 5.7°C

The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).

Average humidity in December - Austin, TX
  • Average humidity in December: 67.6%

The month with the highest relative humidity is May (71.4%).
The month with the lowest relative humidity is August (63.8%).

Average rainfall in December - Austin, TX
  • Average rainfall in December: 61mm

The wettest month (with the highest rainfall) is May (112.8mm).
The driest month (with the lowest rainfall) is July (47.8mm).

Average rainfall days in December - Austin, TX
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is March (9.2 days).
The month with the lowest number of rainy days is August (4.9 days).

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

The month with the highest snowfall is January (10.2mm).
Months with the lowest snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

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

The month with the highest number of snowfall days is January (0.3 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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 shortest days is December (Average daylight: 10.2h).

  • Average sunshine in December: 5h

The month with most sunshine is July (Average sunshine: 10.2h).
The month with least sunshine is December (Average sunshine: 5h).

Average UV index in December - Austin, TX
  • Average UV index in December: 4

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).

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