December weather - Winter 2024

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

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

Weather in December

December in Austin, Texas celebrates the year-end with a return to cooler temperatures. The city experiences a full circle of weather patterns, ending the year much like it began in terms of temperature. Cloud cover is dense at 41%, matching the sombre mood of winter. Despite this, the moderate temperature range ensures outdoor activities remain appealing.

Temperature

With the onset of December, Austin's climate undergoes a slight change as the average high-temperature moves from an enjoyable 67.6°F (19.8°C) in November to a still refreshing 60.3°F (15.7°C). The average temperature drops to a chilly 45.1°F (7.3°C) during the night in the month of December.

Humidity

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

Rainfall

In December, in Austin, the rain falls for 9.7 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, in Austin, there are 142.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

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

Daylight

December has the shortest days of the year, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 5:30 pm. On the last day of December, in Austin, sunrise is at 7:27 am and sunset at 5:41 pm CST.

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. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 3 in December translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

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Frequently asked questions

What are December temperatures 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). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in September is appraised at 100.4°F (38°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, Texas, in December, during 9.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Austin?

March through December are months without snowfall.

Does it snow in Austin in December?

In Austin, 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 12min of daylight.

How many hours of daylight does Austin have in December?

In Austin, the average day length in December is 10h and 14min.

When is the sunrise / sunset in December in Austin?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 5:30 pm. On the last day of the month, in Austin, Texas, sunrise is at 7:27 am and sunset at 5:41 pm CST.

What is the month with the least sunshine in Austin?

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

How long on average sun shines in December in Austin?

In December, the average sunshine duration in Austin, Texas, 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.

What is the UV index reading in December in Austin?

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

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

67.6°F 19.8°C

60.3°F 15.7°C

59.4°F 15.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.6mph 13.8km/h

8.7mph 14km/h

9mph 14.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

18.6

20.5

Average UV index

Average cloud cover

Average visibility

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: 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: 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: 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: 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: 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: 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: 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: 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 2min

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: 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: 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: 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: 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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December weather forecast
Austin, TX

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