Excessive Heat in Tucson Metro Area, Arizona

High temperatures in Southeastern Arizona were 13 degrees above normal, causing Extreme HeatRisk. The Tucson International Airport reached a high temperature of 113 degrees Fahrenheit and was the hottest temperature reached in 2025. The Pima County Medical Examiner found that heat was the primary factor in the cause of death for two individuals, one in Tucson and one in Marana.

Temperatures in Southeastern Arizona were near 6 to 13 degrees above normal with Major to Extreme HeatRisk. The Pima County Medical Examiner found that heat was a factor in the cause of death for 9 individuals. Heat was the primary factor for three people and six were heat contributed. An Extreme Heat Warning was in effect for all the lower elevations in Southeastern Arizona and tied the hottest high temperatures of 2025.