September Climate for Austin

The average daily maximum temperature varies from 93 at the beginning of the month to 86 at the end. The minimum varies from 72 at the beginning to 64 at the end of the month. Extremes are 112 observed in 2000 and 41 in l942. We average about 17 days with a maximum of 90 or higher.

Precipitation averages 3.30 inches but has ranged from a wet 8.11 in 1942 to a dry 0.07 in 1947. A maximum 24-hour amount of 6.74 occurred in 1973. On average, precipitation is observed on 7 days during the month with thunderstorms occurring on 4 of those days.

We usually receive about 66% of the possible sunshine, and between sunrise and sunset have 11 clear days, 11 partly cloudy days and 8 days with overcast conditions. The time between sunrise and sunset decreases from about12 hours 44 minutes at the beginning of the month to 11 hours 55 minutes at the end of the month.