Phoenix, AZ Climate in August

Temperature for August

In Phoenix, AZ during August the average high temperature is 103.9°F. The hottest day on record was August 2, 1993 when the temperature hit 117.0°F.

Phoenix, AZ daily average and extreme temperature range for August

Low Temperature

During August the overnight temperature drops to an average of 78.8°F, with the lowest temperature of 60.1°F being recorded on August 31, 1957. In August it has never frozen overnight.

Precipitation for August

In August the average monthly rainfall in Phoenix, AZ is 0.51 inches with rain usually falling on between 6 and 7 days. 1943 was the driest August with only 0.00 inches of rain falling, and 1990 was the wettest August with 3.48 inches of rain. The wettest single day in August was 15 August 1990 when 2.60 inches of rain fell.

There are thunderstorms on between 5 and 6 days in August.