In fact, according to the U.S. National Oceanic and Atmospheric Administration (NOAA), the four hottest days on record occurred from July 4 to July 7, 2023, breaking the previous record of 16.9°C (62.4°F) set in mid-August 2016.
The above graphic charts the average air temperature at 2 meters above the surface, since 1979, using data from Climate Reanalyzer.
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