Temperature for March
In Phoenix, AZ during March the average high temperature is 78.1°F. The hottest day on record was March 27, 1988 when the temperature hit 100.0°F.

In Phoenix, AZ during March the average high temperature is 78.1°F. The hottest day on record was March 27, 1988 when the temperature hit 100.0°F.
In March the average monthly rainfall in Phoenix, AZ is 1.39 inches with rain usually falling on between 4 and 5 days. 1984 was the driest March with only 0.00 inches of rain falling, and 1973 was the wettest March with 10.84 inches of rain. The wettest single day in March was 3 March 1973 when 5.12 inches of rain fell.
In March it usually snows on between 0 and 1 days. There are thunderstorms on between 1 and 1 days in March.