What is the longest number of days in which the temperatures in phoenix arizona were over 100 f

76 days is the longest number of days in which the temperature in phoenix Arizona were at 100 f  or hotter. That was in the year 1993

Explanation:

Phoenix is the capital of the southwestern USA state of Arizona

The longest stretch of consecutive 100 f or more is 76 days in the year 1993 (10 June 1993 - 24 August 1993)

There were 129 days with 100 f plus in 2003 but not consecutively.

There were 143 days of 100 f plus in 1989, but not consecutively.

29 days was recorded of 110 plus temperatures in 2019 but not consecutively.

Longest stretch of consecutive 110 f was 18 days (12 June 1974 to 29 June 1974)

The top hottest days in Phoenix

(a) 122 f (26 June, 1990)

(b) 121 f (28 July 1995)

(c) 120 f (25 June 1990)

(d) 119 f (29 June 2013)

e/c, where e is its total energy