Phoenix, AZ Climate in May

Temperature for May

In Phoenix, AZ during May the average high temperature is 95.8°F. The hottest day on record was May 29, 1983 when the temperature hit 113.0°F.

Phoenix, AZ daily average and extreme temperature range for May

Low Temperature

During May the overnight temperature drops to an average of 67.3°F, with the lowest temperature of 45.0°F being recorded on May 7, 1975. In May it has never frozen overnight.

Precipitation for May

In May the average monthly rainfall in Phoenix, AZ is 0.27 inches with rain usually falling on between 1 and 2 days. 1978 was the driest May with only 0.00 inches of rain falling, and 1976 was the wettest May with 1.55 inches of rain. The wettest single day in May was 5 May 1976 when 0.91 inches of rain fell.

There are thunderstorms on between 1 and 2 days in May.