Maricopa County Sees Significant Decline in Heat-Related Deaths, Numbers Fall Below 2023

The number of deaths in Maricopa County suspected of being caused by heat has dropped below 2023 levels. Arizona’s heat czar, however, warns this may not last.

PHOENIX — The latest data from Maricopa County health officials show that heat-related deaths have decreased compared to 2023.

This year, there are 438 deaths under investigation, down from 470 during the same period last year.

That’s a significant decrease, especially considering that mid-July saw a doubling of heat-related deaths compared to 2024.

Dr. Eugene Livar, Arizona’s chief heat officer, commented, “We saw our first 100-degree day back in April.” Severe temperatures started earlier, potentially explaining the high numbers earlier this year.

Despite the current decrease, over 400 people are still suspected to have died from heat-related causes. County data reveals that 78% of these deaths occurred outdoors. Among those who died indoors, 87% had air conditioning that wasn’t turned on or wasn’t working.

Livar mentioned that the state’s plan addresses issues like poverty and homelessness, which contribute to heat-related deaths. This year provides a baseline for further actions. Recent reductions in Maricopa County’s numbers may not hold, Livar warns, stating, “It may change in two weeks or two months, depending on what happens with those investigative cases.”

As months of triple-digit temperatures loom, the Heat Relief Network continues its efforts, opening and running cooling centers. “It really takes a village to move forward with these efforts, and we all need to work together,” Livar said.