Phoenix, AZ Climate in September

Temperature for September

In Phoenix, AZ during September the average high temperature is 98.9°F. The hottest day on record was September 5, 1945 when the temperature hit 112.3°F.

Phoenix, AZ daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 71.4°F, with the lowest temperature of 50.0°F being recorded on September 20, 1965. In September it has never frozen overnight.

Precipitation for September

In September the average monthly rainfall in Phoenix, AZ is 0.41 inches with rain usually falling on between 4 and 5 days. 1943 was the driest September with only 0.00 inches of rain falling, and 1983 was the wettest September with 3.89 inches of rain. The wettest single day in September was 30 September 1983 when 2.83 inches of rain fell.

In September it usually snows on between 0 and 1 days. There are thunderstorms on between 2 and 3 days in September.