Temperature for September
In Houston, TX during September the average high temperature is 88.1°F. The hottest day on record was September 6, 2012 when the temperature hit 102.2°F.
Precipitation for September
In September the average monthly rainfall in Houston, TX is 2.08 inches with rain usually falling on between 9 and 10 days. 2012 was the driest September with only 0.00 inches of rain falling, and 1972 was the wettest September with 10.59 inches of rain. The wettest single day in September was 1 September 1981 when 4.41 inches of rain fell.
There are thunderstorms on between 6 and 7 days in September.