U.S. experiences hottest summer on record, NOAA reports

The National Oceanic and Atmospheric Administration (NOAA) announced that the United States experienced its hottest summer on record, with the three‑month average temperature surpassing the previous benchmark set in 1934. The agency’s National Centers for Environmental Information reported that the June‑August period averaged 73.2 °F (22.9 °C), exceeding the prior record of 72.9 °F (22.7 °C) by a measurable margin. August alone also broke the all‑time monthly heat record, reaching an average of 74.1 °F (23.4 °C), a new high for the month across the nation’s climate archives.

The unprecedented warmth was observed across most regions, with the Midwest and Northeast registering temperature anomalies of 3–5 °F above normal, while the Southwest saw prolonged heat waves that strained power grids and heightened wildfire risk. NOAA linked the extreme temperatures to a combination of persistent high‑pressure systems and a background trend of rising global temperatures, noting that the 2023‑2024 summer adds to a series of recent years marked by record heat events. The agency’s data underscore the growing frequency of such extremes, which have implications for agriculture, public health, and energy demand.

NOAA’s findings serve as a benchmark for climate monitoring and policy planning, emphasizing the need for continued observation and adaptation strategies as heat records become increasingly common.