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Heat in Upper Santa Cruz River and Altar Valleys, Arizona
Heat September 17, 2025 · Upper Santa Cruz River and Altar Valleys, Arizona
What the National Weather Service wrote
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.
The wider storm
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 1293515. Narratives are written by the National Weather Service forecast office that issued the report.
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