January Weather in Austin, United States

Last updated: June 24, 2025

In January, the average temperature in Austin, United States hovers around -8°C (17°F). Expect chilly extremes, with minimums plummeting to -35°C (-30°F) and highs reaching up to 9°C (48°F). Additionally, the region experiences about 36 mm (1.4 in) of precipitation spread over 6 days, contributing to an average humidity of 82%.

January Temperature in Austin

In January in Austin, the average temperature is -8°C (17°F). The maximum can reach 9°C (48°F), and the minimum can be as low as -35°C (-30°F). Travelers should prepare for a wide range of temperatures and pack accordingly to stay comfortable in the cold.

January Weather in Austin: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Austin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Austin, January typically has an average temperature of -8°C (17°F), with highs reaching up to 9°C (48°F) and lows dropping to around -35°C (-30°F).

Data source: Temperature data for Austin generated using information from the Copernicus Climate Change Service.

January Precipitation in Austin

In Austin in January, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

January Precipitation Trends in Austin

The chart displays monthly precipitation patterns in Austin, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Austin, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Austin

In Austin in January, humidity is 82%. With an average temperature of -8°C (17°F), this humidity feels like a biting chill that penetrates your layers, making traveling outdoors a brisk and uncomfortable experience.

January Average Humidity in Austin

This chart illustrates the average monthly humidity levels in Austin, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Austin is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Austin

In Austin in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Austin, you can check the information here.

Maximum UV Index Levels in Austin for January

The chart shows the monthly maximum UV Index (UVI) for Austin in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Austin typically reaches 3, which falls under the moderate exposure category.

Data source: Austin January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Austin Compares to Other Months

Weather in Austin varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Austin, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Austin, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	36 mm (1.4 inches)	82%	moderate
February Weather	-9°C (17°F)	46 mm (1.8 inches)	84%	moderate
March Weather	1°C (34°F)	67 mm (2.6 inches)	80%	moderate
April Weather	7°C (44°F)	85 mm (3.3 inches)	81%	very high
May Weather	15°C (59°F)	148 mm (5.8 inches)	74%	very high
June Weather	22°C (71°F)	134 mm (5.3 inches)	80%	very high
July Weather	23°C (73°F)	98 mm (3.9 inches)	80%	very high
August Weather	21°C (70°F)	107 mm (4.2 inches)	77%	very high
September Weather	18°C (64°F)	121 mm (4.8 inches)	75%	very high
October Weather	9°C (49°F)	104 mm (4.1 inches)	80%	moderate
November Weather	1°C (34°F)	45 mm (1.8 inches)	87%	moderate
December Weather	-4°C (25°F)	37 mm (1.5 inches)	83%	moderate