Temperature for September
In Phoenix, AZ during September the average high temperature is 101.1°F. The hottest day on record was September 3, 1982 when the temperature hit 111.9°F.
Precipitation for September
In September the average monthly rainfall in Phoenix, AZ is 0.92 inches with rain usually falling on between 3 and 4 days. 1978 was the driest September with only 0.00 inches of rain falling, and 1984 was the wettest September with 5.37 inches of rain. The wettest single day in September was 30 September 1983 when 1.66 inches of rain fell.
Tornados are reported on 0 and 1 days in September. There are thunderstorms on between 2 and 3 days in September.