Heat — Upper Santa Cruz River and Altar Valleys, Arizona
2025-09-17 · Upper Santa Cruz River and Altar Valleys, Arizona
1
Direct deaths
Event narrative
High temperatures in Southeastern Arizona were 4 degrees below normal, causing Low HeatRisk. A Nogales CWOP site reached a high temperature of 87 degrees Fahrenheit. The Pima County Medical Examiner found that heat was the contributing factor in the cause of death for an individual in Nogales.
Wider weather episode
Temperatures in Southeastern Arizona ranged between 4 degrees below normal to 4 degrees above normal with Low HeatRisk. The Pima County Medical Examiner found that heat was a contributing factor in the cause of death for 2 individuals, one in Tucson and one in Nogales.
Source: NOAA Storm Events Database, event_id 1293515. Narrative written by the NWS forecast office that issued the report.