Austin Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Austin, Texas during each month of the year.

The average high and low temperatures are listed below by month and annually for Austin, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 80, 90 or 100 °F each month in Austin, scroll down farther. There are also counts of nights with warm temperatures and days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Austin, 2010 to 2019
High °F Low °F   High °C Low °C
63 41 January 17 5
67 46 February 19 8
75 53 March 24 11
81 59 April 27 15
87 67 May 31 19
94 74 June 35 23
98 76 July 36 24
100 76 August 38 25
93 72 September 34 22
83 61 October 29 16
72 50 November 22 10
64 44 December 18 7
81 60 Year 27 15
30-year temperature averages for Austin, 1991 to 2020
High °F Low °F   High °C Low °C
63 42 January 17 5
67 46 February 19 8
73 52 March 23 11
80 59 April 27 15
87 67 May 31 19
93 73 June 34 23
97 75 July 36 24
98 75 August 37 24
91 70 September 33 21
83 61 October 28 16
72 51 November 22 10
64 43 December 18 6
81 59 Year 27 15

Days of Hot Weather in Austin

Most summer days in Austin heat up to a least 90 degrees. It gets much hotter on an average of 29 days a year, with temperatures reaching 100 °F or more. These heatwaves can occur anytime from June to September.

Days per month in Austin of at least 80, 90 or 100 °F
  80 °F
27 °C
90 °F
32 °C
100 °F
38 °C
January 1 0 0
February 3 0 0
March 9 1 0
April 18 3 0
May 27 11 0
June 30 24 3
July 31 29 10
August 31 29 13
September 28 20 3
October 22 6 0
November 7 0 0
December 2 0 0
Year 209 123 29
Average number of days monthly in Austin that stay above 50, 60 or 70 °F
  50 °F
10 °C
60 °F
16 °C
70 °F
21 °C
January 5 1 0
February 9 2 0
March 18 7 0
April 25 13 2
May 31 26 10
June 30 30 22
July 31 31 30
August 31 31 29
September 30 28 17
October 27 16 5
November 15 5 1
December 7 2 0
Year 257 193 115

How Often Austin Has Cold Temperatures

Nearly half of winter nights in Austin dip to 40 °F or less. On average, two nights a decade drop as low as 20 degrees (-8 °C).

Austin normally sees just one day each winter when the temperature doesn't rise above freezing.

References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Austin Weather
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