Austin TX Average Temperatures 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.

Austin Temperatures: Averages by Month

Days of Hot Weather in Austin

How Often Austin Has Cold Temperatures

References

More on Weather in Texas