average temperature in tuscon az
1 The annual average temperature in Tucson, Arizona, Usa is warm at 20.2 degrees Celsius (68.4 degrees Fahrenheit). 2  There is a variation of average monthly temperatures of 19.6 C (35.3 F) which is a slightly low range. 3  The range/ variation of diurnal average temperatures is 15.3 C (27.5 F).