Heat in Tohono O Odham Nation, Arizona

Hot high temperatures 100 to 105 degrees, or 5 degrees above normal, occurred on July 18, causing the Moderate Heat Risk category to be reached. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals found in the desert, one near Sells and another near Queen's Well.

Hot temperatures 5 to 7 degrees above normal were experienced across parts of southeast Arizona July 17 and 18. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one individual found outdoors in Tucson on the 17th and for an additional five individuals on the 18th. Of those, four were found in the desert: two on the Tohono O'odham Nation; one in east central Pima County; and one in Cochise County. A fifth individual died in the hospital shortly after being found in their Safford residence.