average temperature in austin tx
Most / Least Educated Cities in TX. The average temperature of Austin is 67.25Â°F, which is higher than the Texas average temperature of 65.97Â°F and is much higher than the national average temperature of 54.45Â°F.he average temperature of Austin is 67.25Â°F, which is higher than the Texas average temperature of 65.97Â°F and is much higher than the national average temperature of 54.45Â°F.