This year’s heat-related death toll rose to 260 on Monday, according to the Clark County coroner’s office.

That number is up from 191 , reported on Sept. 22, the last day of summer. It’s generally been a milder year compared with 2024, when 527 people died in the hottest summer on record since the 1930s.

About this time last year, heat-related deaths swelled to 402 , reflecting the trend that more extreme temperatures for longer periods can bring about more deaths. Those year-to-year comparisons can be tricky, however, as no set schedule to report heat deaths exists, and circumstances such as staffing can affect investigation timelines.

It can take 90 days to determine the cause of nearly all deaths and for officials to release information, so the toll is likely to climb through the end

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