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Environment & Climate

United States records warmest eight-month start to a year since 1895

Scientific American reports that 2026 is on track for potential annual heat records following an unprecedented warm period.

The short version

  • The contiguous U.S. recorded its warmest January-through-August period since records began in 1895, averaging 57.98 degrees Fahrenheit.[Scientific American]
  • Climatologists estimate roughly an 80 percent probability that 2026 will replace 2024 as the hottest year on record in the U.S.[Scientific American]
  • NOAA forecasters project above-normal autumn and winter temperatures across much of the continental U.S., though the agency cautions that a record is not guaranteed.[Scientific American]
  • Scientists warn that a developing Super El Niño in the Pacific could drive even higher global temperatures in 2027.[Scientific American]

Key facts

  • The contiguous U.S. average temperature from January through August 2026 reached 57.98 degrees Fahrenheit, surpassing the previous record set in 2012 by 0.08 degrees.[Scientific American]
  • The existing U.S. annual heat record was established in 2024 at an average temperature of 55.48 degrees Fahrenheit.[Scientific American]
  • NOAA forecasts indicate above-normal temperatures across large parts of the continental U.S. from October through December 2026.[Scientific American]

What remains uncertain

  • NOAA officials emphasize that outlooks do not absolutely confirm whether 2026 will officially break the full-year temperature record.[Scientific American]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.