Excessive Heat — Tucson Metro Area, Arizona

2025-07-10 · Tucson Metro Area, Arizona

Event narrative

High temperatures in Southeastern Arizona were 8 degrees above normal, causing Major HeatRisk. The Tucson International Airport reached a high temperature of 109 degrees Fahrenheit. The Pima County Medical Examiner found that the cause of death for one individual in Tucson to be heat caused and one individual in Tucson's cause of death was heat contributed.

Wider weather episode

Temperatures in Southeastern Arizona were near 8 to 12 degrees above normal with Major HeatRisk. The Pima County Medical Examiner found that the cause of death for 5 individuals, with two in Tucson were heat contributed and three individuals, two in Tucson and one in Three Points, were heat caused. An Extreme Heat Warning was in effect the lower elevations on July 9th for the Tucson Metro area westward.

Source: NOAA Storm Events Database, event_id 1285501. Narrative written by the NWS forecast office that issued the report.