Excessive Heat — Upper Santa Cruz River And Altar Valleys, Arizona
July 1, 2023 · NOAA Storm Events record
Event narrative (NOAA)
Very hot temperatures of 7 to 10 degrees above normal caused the Major Heat Risk category to be reached the first eight days of July. Record highs of 106 degrees on July 6 and 105 on July 3 and 7 occurred at the Nogales Airport and 106 degrees on July 3 at Sasabe. The hottest temperature was 107 at Sasabe on July 4 and 5. The Pima County Medical Examiner determined that heat was the primary cause of death for one individual found in the desert near Arivaca.
Other notable excessive heat events in Arizona
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.