Austin Weather in January

January serves up mild weather at Austin, Texas, even though it's the city's coldest month of the year. This is a month of comfortable temperatures, light rainfall and few storms.

This page gives detailed information on the typical January temperature, precipitation, sun, humidity, wind and storms for Austin. The numbers here are historical averages based on climate data gathered at Camp Mabry, located at few miles from downtown Austin.

Temperature Weather iconTemperature

63 °F January average high 17 °C
42 °F January average low 5 °C

January is the coldest month overall for Austin and the 2nd to 14th are its chilliest days. They have daily highs averaging 62 degrees Fahrenheit (17 degrees Celsius) and lows of 41 °F (5 °C).

19 days 60 °F max. or more (16 °C)
15 days 40 °F min. or less (4 °C)

The temperature rises most days during January to over 50 °F (10 °C) in Austin. The city averages ten days this month when the thermometer reaches into the 70s °F (over 21 °C). For one day on average, the temperature climbs to 80 °F (27 °C) in January.

The thermometer dips to freezing or below on an average of 5 nights. But January only rarely gets as cold as 20 °F (-8 °C).

Rainy Weather iconPrecipitation

2.6 in total precipitation 67 mm
8 days of rain

Half the time, Austin receives 0.9 to 3.4 inches (23 to 86 mm) of rainfall in January. One in four years has drier weather, while another one in four is wetter.

Some of January's precipitation can fall as snow. Most years though, Austin is free of snow.

Sunny Weather iconSun

49 % sunshine
9 days clear skies

January is one of the cloudiest months for Austin. Even so, half the time it's sunny. The sun's rays reach the ground during 49 percent of daylight hours on average, for a total of 159 hours in the month. Typically on 9 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in January at Austin lasts for 10 hours and 27 minutes a day on average. The shortest day of the month is the 1st with 10 hours and 14 minutes of daylight. By the end of the month, the days have lengthened to 10:45 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

67 % January average humidity

The relative humidity in Austin during January usually peaks at 78 percent in the morning then drops to 52 percent by mid afternoon.

Local Time12 am3 am6 am9 am12 pm3 pm6 pm9 pm
Humidity % 72 76 78 75 60 52 57 67

Windy Weather iconWind

8.5 mph January wind speed average 13.7 kph

January is an average month in Austin for wind speed.

Stormy Weather iconStorms

2 days rainfall of 0.5 inches (13 mm) or more
1 day with thunderstorms in January

Austin occasionally gets a snowstorm in January. About once a decade the city becomes covered in a 3-inch (8 cm) snowfall.

Not every January here sees a thunderstorm.


The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.

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